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'''Modern Notes:''' [[Carnegie stage 2]] | [[Week 2]] [[:Category:Carnegie Embryo 8190|'''Carnegie, No. 8190''']]

* '''1914''' - research professor in the department of embryology of the Carnegie Institution, at the Johns Hopkins Medical School under [[Embryology_History * '''1917''' - Streeter succeeded Mall as director of the Carnegie Institution.

Department of Embryology, Carnegie Institution of Washington ..., with all parts in their natural connection and the contours of the Whole embryo and of the different organs clearly recognizable. On the other hand, the la

Department of EmbryologyThe Carnegie Institution Of Washington, Baltimore, Maryland ...empt was made to recover a specimen comparable to the youngest known human embryo.

...s a mammalian model of development with a term gestational period of 145 - 150 days. [[File:Carnegie stages species comparison.jpg|500px]]

:'''Links:''' [[Book_-_Contributions_to_Embryology|Carnegie Institution of Washington - Contributions to Embryology]] =Abnormalities of the Mammalian Embryo Occurring before Implantation=

...by Odgers describes an early embryo development, later characterised as [[Carnegie stage 8]]. {{Carnegie stage 8 links}}

...ark_Hill.jpg|50px|left]] This historic 1938 paper describes the "Falkiner" embryo, named after one of the co-authors. See also about this embryo: {{Ref-Falkiner1932}}

[[Carnegie stage 3]] ...eeding stage in development. It is to be remembered that at all stages the embryo is a living organism, that is, it is a going concern with adequate mechanis

...ine editor has replaced the traditional Roman numeral used in the text for Carnegie staging with a number link to that stage online information. {{Carnegie stage table 1}}

...or purposes of comparison. Kunz spoke of the larger fetus, shown in figure 150, as entirely normal, which it apparently was, for the deviations from the n ...infiltrated decidua. That these chorionic vesicles both once contained an embryo, no embryologist will doubt. It is evident also that both were retained for

...yed to generate models of the human embryos in the [[Carneige Collection]] embryo {{CE460}}. {{Carnegie Collection stage 20 table}}

[[Carnegie stage 1]] ...a. 0.1 mm) and weight (ca. 0.004 mg) of the organism at fertilization, the embryo is "''schon ein individual-spezifischer Mensch''" (Blechschmidt, 1972). The

...etimes referred to as the Minot Collection, now forms part of the larger [[Carnegie Collection]]. The collection was described in detail by Minot (1905).<ref n [[Carnegie Collection]] - HDAC 7 Charles Sedgwick Minot Embryological Collection

...function of long noncoding RNAs (lncRNAs) and small RNAs during oocyte-to-embryo transition in mammals. LncRNAs are an assorted rapidly evolving collection ...miR-183) are differentially expressed in the CVG compared to NC and OV at Carnegie developmental stage {{CS13}}. We further identified transcription factors t

...ibes an early anencephalic embryo. Limb development and CRL suggest week 8 Carnegie stage {{CS23}} or an early week 9-10 {{fetal}} stage. =An Anencephalic Embryo of 25 mm. C.R. Length=

...c) pregnancy embryos. This was an early publication in the series from the Carnegie Institution of Washington called [[Book_-_Contributions_to_Embryology|Contr ...agma determines, with considerable certainty, whether or not the contained embryo is normal or pathological. We are indebted to him for about a dozen papers

...23 paper by Finley describes vascular development in the head of the human embryo. ...day 50). Its development and position was historically used to stage late Carnegie embryos.

...23 paper by Finley describes vascular development in the head of the human embryo. ...day 50). Its development and position was historically used to stage late Carnegie embryos.

...This 1908 paper describes an early human embryo (Pfannenstiel III) about [[Carnegie stage 11]] occurring in [[week 4]]. From the Collection of Prof. Pfannensti ! Human embryo Pfannenstiel III

...al origin, are very early differentiated from the otic vesicle in the 7 mm embryo as a medial diverticular projection (Bast, Anson and Gardner, ’47). This ...and Gardner (’47) pointed out that the sac overlies the sinus in the 50 mm embryo.

...human embryo|Human Embryo vascular development (week 8, stage 20 Carnegie Embryo No. {{CE460}})]] ...embryo 50 mm. long (Carnegie Collection, No. 96)|Human embryo 50 mm long (Carnegie Collection, No. {{CE96}}.]]

...ibes gastrointestinal tract smooth muscle development using a number of [[Carnegie Collection]] embryos. {{Carnegie Collection fetal table}}

...0 series and 12 dissected tonsillar regions from the [[Carnegie Collection|Carnegie Institution, Department of Embryology]], and 50 series and 19 dissected ton ...tance. I also wish to acknowledge the generous help of Dr. G. L. Streeter, Carnegie Institution of Embryology, in placing at my disposal abundant material.

Carnegie Institution of Washington - Year Book No. 38 Published By Carnegie Institution Of Washington

...escribed embryo measured 11 mm CRL, probably corresponding to [[week 6]] [[Carnegie stage 16]]. A reconstructed model was also illustrated in the paper. '''Modern Pages:''' [[Carnegie stage 16]] | [[Week 6]]

[[File:Human Carnegie stage 10-23.jpg|thumb|Carnegie Embryos]] [[File:Streeter02.jpg|thumb|Measuring embryo size]]

...Mall describes the human embryos in the collection that would become the [[Carnegie Collection]]. There is also a [[:File:1904 - Catalogue of the collection of [[Carnegie Collection]] | [[Carnegie Embryos]]

both at the Carnegie Institute and at the Rockefeller Institute. He is an honorary member and fe Carnegie Institution of Washington Department of Embryology, Baltimore

...ucida. drawings were made from these serial sections at a magnification of 150 diameters and were used in making graphic reconstructions of the mesonephr '''Fig. 1''' Reconstruction of part of the right mesonephros of a human embryo of 36 mm.

...ht, Sitting Height, Head Size, Foot Length, and Menstrual Age of the Human Embryo= Published by the Carnegie Institution of Washington Washington, 1920

...by Cash describes development of the lymphatics in the {{stomach}} of the embryo {{pig}}. ...ern Notes:''' {{stomach}} | {{pig}} | [[Book_-_Contributions_to_Embryology|Carnegie Institution of Washington - Contributions to Embryology]] | [[Immune System

...ioned and stained. Of the embryos and fetuses studied, 152 belonged to the Carnegie Institution Department of Embryology. The remaining specimens were from the ...s to Dr. G. L. Streeter for the use of the Embryo1ogical Collection of the Carnegie Institution and supplying figures 15, 16, and 17. I also wish to thank Pro

...10) the right side of the neck and thorax was cut in sagittal sections. In embryo (9) and the six foetuses the neck and upper part of the thorax were cut in (10) Embryo, 9th-10th week, no measurement recorded, sagittal sections at 15 9, of righ

...ric 1955 paper by Mckay and co-authors describes human [[Carnegie stage 13|Carnegie horizon (stage) 13]] embryos. Currently only a brief abstract is included o '''Links:''' [[Carnegie stage 13]] | [[Week 5]] | [[Embryology History - Arthur Hertig|Arthur Herti

...r I will submit anatomical evidence arguing strongly for the idea that the embryo may also begin the independent regulation of certain phases of its eliemist ...things, however, it is not possible to experiment directly with_ the human embryo, and our knowledge of the intrauterine physiology of the individual must be

...gave a review of the literature to that date. In the caudal sections of an embryo of six days and eighteen hours incubation he finds that: ...and early growth of this blood filled lymphatic plexus in the living chick embryo of about five days, that it is formed by a purely centrifugal outgrowth fro

...t. This study used human embryos from the [[Harvard Collection]] and the [[Carnegie Collection]] ...n the development of the human adrenal cortex from its inception until the embryo has grown to a length of 20 mm. Special attention has been given to the gen

...pment. This paper includes descriptions of the venous system of several [[Carnegie Collection]] human embryos as well as human embryos from the [[Harvard Coll ...3|623]] ([[Carnegie stage 17]]) | [[:Category:Carnegie Embryo 841|841]] ([[Carnegie stage 18]])

...the ossicles in the middle ear were independent in different locations. At Carnegie Stage 17 a homogeneous interzone clearly defined the incus and malleus anla Cross-section of human embryo [[Carnegie stage 22]] during [[Week 8]].

...|841]], [[:Category:Carnegie Embryo 5537|5537]], and [[:Category:Carnegie Embryo 6521|6521]]). Note Mall's reference is cited as 1913, but it is the 1912 he ...eveloping septa in accord with Tandler’s findings. Moreover, the age of the embryo fits nicely into the Tandler series and also with the stages described in

...bellum of Man. He stated that the rhombic lip begins to form, in the human embryo, at the beginning of the fifth week, and that it extends from the cervical ...gave an illustration of a transverse section through the hind-brain of an embryo rat (3 mm. long) which certainly closely resembled some of the figures give

...ric 1955 paper by Mckay and co-authors describes human [[Carnegie stage 14|Carnegie horizon (stage) 14]] embryos. Currently only a brief abstract is included o '''Modern Pages:''' [[Carnegie stage 14]] | [[Week 5]] | [[Embryology History - Arthur Hertig|Arthur Herti

...e free to use our judgment in methods of fixation and preservation. If the embryo is perfectly fresh or possibly living, we use, of course, the most refined ...straight and other measurements and weights also are taken. The age of the embryo is estimated on the basis of weight, crown-rump, and foot length, and the e

[[File:Stage18 em11.jpg|thumb|200px|Human Embryo Face ([[Week 7]], Carnegie stage {{CS18}}, 44 - 48 days, CRL 13 - 17 mm)]] ...eft_palate.jpg|thumb|200px|Human Embryo clefting. (Week 6, {{GA}} week 8, Carnegie stage {{CS16}}, ventral view)]]

...series [[Book_-_Contributions_to_Embryology|Contributions to Embryology]] (Carnegie Institution of Washington). Of the Department of Embryology, Carnegie InslUulion of Washington.

=Notes on Irregularities of Ovogenesis and Abnormal Development of the Embryo in Cavia= ...f deviations from the normal in the early stages in the development of the embryo of Cavia. These specimens were obtained during a series of investigations o

...d the development of the thoracic vertebrae using human embryos from the [[Carnegie Collection]]. [[Embryology History - Charles Bardeen|Charles Bardeen]] | [[Carnegie Embryos]]

...genesis of the thyroid follicles (Norris, ’16), has been carried on at the Carnegie Institute of Embryology and at the University of Minnesota under the superv This study is based upon the collection of human embryos in the Carnegie Institute of Embryology at Baltimore and upon those in the Anatomical Labor

==Human Embryo Development== {{Carnegie stages}}

==Human Embryo Development== {{Carnegie stages}}

...indicate the absence of pouches. Weller (30) described a two somite human embryo which according to his description possessed the first pharyngeal pouch. Th Corner (4) described the foregut of a 10-somite human embryo, as being compressed dorso-ventrally with the anterior end immediately unde

Department of Embryology, Carnegie Institution of Washington, Baltimore, Mn. ...measured 350 mm or over a foot in its longest diameter. The ostrich egg is 150 mm in length and has a capacity of 1.2 liters, or over a quart.

...ses along their processes (conductivity). They range in diameter from 5 to 150 μm and contain 3 parts: a cell body, multiple dendrites and a single axon. '''Human Embryo - developing cortex'''

...pg|90px|left]] This historic 1931 paper describes an early human embryo, [[Carnegie stage 8]]. =A Young Human Embryo (Embryo Dobbin) with Head-Process and Prochordal Plate=

...ses along their processes (conductivity). They range in diameter from 5 to 150 μm and contain 3 parts: a cell body, multiple dendrites and a single axon. '''Human Embryo - developing cortex'''

...ystem in organic economics, and the basic morphological principle that any embryo must go through certain ancestral phases of organization before it can arri ...ween the embryonic and the adult stages in the circulation of a fish where embryo and adult are both living under similar conditions.

{{Carnegie No.59 Header}} =Relative Weight and Volume of the Component Parts of the Brain of the Human Embryo at Different Stages of Development=

...e, in which it opened in the naso-pharynx. In the development of the human embryo we see these three stages reproduced.<ref> See Professor J. E. Frazer, Lanc ...rmation of the Face by the Nasal, Maxillary and Mandibular Processes in an Embryo of the 6th week]]

...University of Chicago collection that were eventually contributed to the [[Carnegie Collection]]. ...would approximately between [[Carnegie stage 11]] (13 - 20 somites) and [[Carnegie stage 12]] (21 - 29 somites).

Human crown rump length Probable age ' Method of embryo no. in millimeters in weeks preparation H. 1360 17 7 Pyridine silver H. 119 ...’08) has shown that the motor elements in the brain stem of a 10 mm. human embryo form a continuous column which extends from the spinal cord into the medull

'''Brief timeline of rabbit embryo model use''' *1890- Walter Heape succeeded first mammalian embryo transfer

{{Waterston1917 embryo table}} ...structions of developing hearts, and particularly his model of the 2.5—mm. embryo of R. MEYER’s collection, which is a most valuable specimen.

...of the lower axial skeleton and lower limbs using human embryos from the [[Carnegie Collection]]: {{CE2}}, {{CE22}}, {{CE45}}, {{CE62}}, {{CE109}}, {{CE144}}, [[Embryology History - Charles Bardeen|Charles Bardeen]] | [[Carnegie Embryos]]

...to 25 rods which were separated one from the other by a distance of about 150 A. Each rod showed a faint periodicity. In other planes of sectioning (fig. ...rystalloids appeared to consist of rods having an average spacing of about 150 A and making 65° angles with one another. They appeared to be arranged in

...microg/d and suggested that a median urinary iodine (UI) concentration of 150-249 microg/L indicates adequate iodine intake in pregnant women. Thyrotropi :'''Links:''' [[Carnegie_stage_13_-_serial_sections|Stage 13 Sections]] | [[Carnegie stage 13]]

...his historic 1952 paper by West describes two early embryos similar to a [[Carnegie stage 7]] (26 - 30 days), caudal neuropore closes, Somite Number 21-29. {{Carnegie stage 7 links}}

...here are those who arc not satisfied as to its formation even in the human embryo. ...any instances it was considered advisable to make two models from the same embryo—one of the whole of the hind-brain, and another of part of that organ und

...his paper appear to be from the [[Carnegie Collection]] though some of the embryo number, CRL and ages do not appear to match the catalogue information. Fig. l. — Embryo 87; size, 25 mm crown-rump length; age, about 8 weeks. The capsule is mostl

| [[File:Mark_Hill.jpg|90px|left]] Possibly [[Carnegie stage 6]]. See an additional description of the Herzog embryo in {{Ref-Lewis1917}}

...In the cuthenan mammals the diameter of the shed egg lies between 8o/i and 150^1 The eggs however often show distinctive characteristics m the appearance ...l the cytoplasm is divided into two giving nse to a two cell st ige of the embryo or ovum (Fig 28B and C) Each of the daughter cells contains an equal number

=Development of the Auricle in the Human Embryo= [[Book_-_Contributions_to_Embryology|Carnegie Institution of Washington - Contributions to Embryology]]

[[File:Stage18 em11.jpg|thumb|300px|Human Embryo Face ([[Week 7]], [[Carnegie stage 18]], 44 - 48 days, CRL 13 - 17 mm)]] * babies born before 25 weeks of gestation, 150 per 10,000 births had this anomaly. Most babies (80.0%) were born at term w

...storic 1922 paper by Doan is a description of the development of the human embryo bone marrow. :'''Links:''' [[Book_-_Contributions_to_Embryology|Carnegie Institution of Washington - Contributions to Embryology]]

:'''Links:''' [[Human Embryo Collections]] | [http://sydney.edu.au/medicine/museum/mwmuseum/index.php/Wi ...ch. f. Anat. u. Physiol., Analt. Abt., 1896., and the Kroemer-Pfannenstiel embryo " Klb."</ref>

...hed by L. B. Clark and W. N. Hess, "Swarming of the Atlantic Palolo W6rm," Carnegie Institution of Washington^ Publication d'^l).. Papers from the Tortugas Lab ...le hormones (androgens) upon the growth of the accessory sex organs of the embryo and in particular upon their differentiation into male and female types.

By A. M. Hain (Carnegie Research Fellow), The Institute of Animal Genetics, Edinburgh University, ...y defrayed by grants (to A.M.H.) from the Medical Research Council and the Carnegie Trust for the Universities of Scotland.

...later (Giacomini, 1893), when considering chorionic vesicles devoid of an embryo, which had evidently undergone hydatiform degeneration, again spoke of the Johnson (1917) found the villi on a chorionic vesicle, containing an embryo with 24 somites, variable in size and 1.1 to 1.3 mm. long in the region of

...of twin human embryos. With 17-19 paired somites makes these twin embryos Carnegie stage {{CS11}}. <br>[[Media:1915 Transitory cavities in the corpus striatum of the human embryo.pdf|PDF version]]

...after the 60 mm embryo stage|Plate 13. Placental structure after the 60 mm embryo stage.]] The numerous contributions from the Carnegie Laboratory of Embryology on implantation of the blastocyst and on placental

...f the Carnegie Institution of Washington. The uterus in which this 11 -day embryo has attached itself is in the typical progestational phase, as shown by the ...Menstruation in intraocular endometrial transplants in the Rhesus monkey." Carnegie Institution of Washington, Publication No. 518 {Contributions to Embryology

...ing of their genetic material that initiates development of the [[E#embryo|embryo]]. The union of two [[H#haploid|haploid]] gametes to form the first [[D#dip ...'s) and proposes in utero influences cause permanent changes in [[E#embryo|embryo]]/[[F#fetus|fetus]], low birth weight, predisposition to chronic disease in

1903 Bemerkungen zum Beckenwachstum. Anat. Hefte, Bd. 20, S. 123-150. ...use of the intrinsic nature of the subject, for the functions of which the embryo or fetus is capable at various times are determined by the growth of the ne

...e pulli in ovo (London: Joannem Martyn, 1673).|Cover Illustration: Chicken embryo, from M. Malp Dissertatio epistolica de formatione pulli in ovo (London: Jo Cover Illustration: Chicken embryo, from M. Malp Dissertatio epistolica de formatione pulli in ovo (London: Jo

Carnegie Institution of Washington ...n of data was made by the statistical staff of the Department of Genetics, Carnegie Institution of Washington (Cold Spring Harbor, Long Island), and by Mr. Wil

...unity to collect this material; and to the Department of Embryology of the Carnegie Institution for technical assistance. ...lantois is intimately applied. Nutritive substances passing from mother to embryo must then traverse both the uterine epithelium and the columnar chorionic e

Department of Embryology, Carnegie Institution of Washington, Baltimore, Maryland ...ovulationem, leaving only five and one-half days‘ actual development of the embryo to birth. The rate of development is compared with Eutherian mammals.

...and blastulation appear normal. However, gastrulation is abortive, and the embryo soon dies (Moore, '41, '46, '47). ===6. Relation of Early Cleavage Planes to the Antero-posterior Axis of the Embryo===

...an study. This embryo (Teacher-Bryce Ovum No. 1) was later classified as [[Carnegie stage 6]] {{Carnegie stage 6 links}}

...human embryos in detail ([[:Category:Teacher-Bryce Embryo 2|Teacher-Bryce Embryo 2]]) and compares these two with the other known (named) human embryos of t =IV. The Development of the Vascular System in the Human Embryo prior to the Establishment of the Heart=

Acting Lecturer and Demonstrator in Anatomy, University College, London; tate Carnegie Research Fellow in Embryology, and Assistant in the Depariment of Anatomy, This stage is represented by one embryo 25 mm. in length, the cranial extremity of which has been reconstructed in

...ical study With few exceptions, the younger the stage of development of an embryo of a particular species the lower is the animal group which it resembles bo ...hology does not appear to be concerned with the further development of the embryo, although the genetic structure of the male gametes is of fundamental impor

embryo without the cooperation of the female, and whether the result is male enlarged compartment where the egg or developing embryo may be retained.

Hull Laboratory Of Anatomy, University Of Chicago, And The Carnegie Institution Of Washington, Laboratory Of Ernbryolagy, Baltimore ...which appeared in the medial wall of the cerebral hemispheres of the human embryo between the second and the fourth months was under debate from 1868 to 1904

...s were fertilized and were in stages from the one-celled to the six-celled embryo. Five of the twentyfour sows mentioned were obtained before a method of dis ...ictured in her recent contribution to the early vasculogenesis of the pig (Carnegie Institution of Washington, Contributions to Embryology, No. 18, 1917).

...ranes and appendages, and the establishment of those relations between the embryo and the maternal organism which are such fundamental characteristics of the ...aternal uterine walls, and in the early and extensive relation between the embryo and this new source of nutrition.

===3. Basic Structure of the Vertebrate Skin in the Embryo=== In the embryo of the shark, chick, and mammal, the single-layered condition of the primit

...Surgeons’ Hall, Edinburgh ; Hon. Fellow, American Gynecological Society ; Carnegie Research Fellow. Fig. 1. — T.S. embryo, Macropus rujicollis ; Wolffian bodies and testes in abdomen. ({.)

...s thesis by Stewart describes development of the blood supply to the human embryo basal ganglia. =The Development of the Blood Supply to the Human Embryo Basal Ganglia=

| These are links to other normal Carnegie Collection numbered embryos available on this educational site. {{Carnegie numbered embryo links}}

...ntary bone and does not articulate with the sternum, and finally the human embryo, where the clavicle reaches its fullest development. ...absent; the remaining parts of the sternal bands were traced from a point 150 ^ anterior to the level of the first ribs back to the level of the ventral

...both the method of injection and that of direct observation of the living embryo in the same stage. ...h the growih of the entire wall of a vessel by cell-division in the living embryo and the formation of new vessels from the walls of old vessels; so that the

embryo (Heuser and Streeter, 1941 ; Hertig embryo extract prepared from 19- to 20day-old guinea pig embryos (Blandau and

namely, is there a separate germinal plasm set apart in the early embryo which used to refer to those germ cells which possibly segregate early in the embryo,

...e, it was nevertheless apparent that a venous injection of the body of the embryo was often produced, and the impression was gained that a communication exis ...om the mouth, reaching it by way of the Eustachian tube. Using, in the pig embryo, the heart as the mechanism for injecting the ink, extravasation from the c

the embryo of the mouse and rabbit is lower embryo, until the sprouting of the primary

...h he believed was the essential element in that it contained the preformed embryo in an intangible way. That is, the sperm animalcule of the ram contains a l ...rged capsule is soon formed which assumes the size and shape of the future embryo at the time of hatching (fig. 123). (See Tavolga, '50.) In the brook lampre

...tion of the interaction among the developing and growing organs within the embryo. The study of the growth influences of one embryonic . organ on another is ...and then continues without interruption until a free living larva or young embryo is formed. This then proceeds to grow and change until the adult structure

structural relationships between the developing embryo and the uterus. These comprise a succession of stages of placental metabolic demands of the developing embryo and fetus.

Washington, D. C. Published by the Carnegie Institution of Washington Carnegie Institution Of Washington, Publication No. 142

...p. 1391. Corner, G. W. 1915 Corpus luteum of pregnancy as it is in swine. Carnegie ...ctomjr in relation to the secondary sex characters of some domestic birds. Carnegie Inst. Washington, 243. Hegar, K. 1910 Studien zur Histogenese des Corpus lu

...presents the direction of the first outgrowth of the cochlear pouch of the embryo. As shown by Streeter ('07) for the human, this first growth of the cochlea and the acoustic and facial nerves in the human embryo. Am. Jour.

...) stated that there are present in the developing islet cells of the sheep embryo minute safranophile granules. These have since been observed by Laguesse (' Pankreas beim nienschlichen Embryo. Arch, mikros. Anat., Bd. 64. Kyrle, J. 1908 Ueber die Regenerationsvorgang

Mabel Bishop. The nervous system of a two-headed pig embryo. Twenty figures 379 150 150 150 113 125 125 138 138

Staff Member, Department of Embryology, Carnegie Institution Of Washington. Baltimore. Maryland 150

...yolk. This substance contains the principal foodstuffs for the developing embryo. Studies on the yolk of the hen’s egg indicate that it contains water (50 ...ter chapters that the animal pole marks the anterior end of the developing embryo and the vegetal pole marks the posterior end. There is also reason to belie

...that described for other hemopoietic organs, e.g., yolk-sac of 10-mm. pig embryo, 5 yolk-sac of mongoose embryos, 6 and red bone-marrow. 7 ...of mesenchymal 'angioblasts' in the living blastoderm of the two-day chick embryo grown in Locke's solution, by which the blood-vessel lumen forms. But these

-150 ...IC SAC AND ITS TOPOGRAPHICAL RELATION TO THE TRANSVERSE SINUS IN THE HUMAN EMBRYO

...ogy, With An Appendix On The Arteries And Veins In A Thirty Millimeter Pig Embryo== Ordinarily, the student is shown two dimensions of a piece of tissue or embryo, and left to imagine the third. Though whole mounts of chick embryos are ha

Aided by the Carnegie Institution. ...us structures in the wall of the cerebral vesicle and neural tube of a cat embryo undoubtedly relate to mitochondria.

...empt was made to destroy just enough tissue along the dorsal aspect of the embryo to insure complete elimination of the neural-crest material and leave the v ...rophotographically in figures 1 and 2, which are taken from sections of an embryo of the chick (14) ^ which was subjected to operation at the close of the se

From the Department of Embryology, Carnegie Institution of Washington, Baltimore, Maryland ...ation of the cavities in the cartilaginous capsule of the ear in the human embryo. Amer. Jour. Anat., vol. 22.

...f the Scala tympani, Scala vestibuli and perioticular cistern in the human embryo. Nine figures 299 ...he also found occasional plates containing 65, 70, 86, etc., up to 100 and 150. These he considers in the nature of exceptions common to the germ cycle of

University of Cincinnati Carnegie Institution Ruth Stocking Lynch. The cultivation in vitro of liver cells from the chick embryo. Twenty-five figures 281

are comparatively numerous in the embryo, and in the adult the resting A, From a 7 mm. embryo; B, from one of 26 mm.; ch,

...ent peculiarly favorable m.aterials for studies of this character, for the embryo becomes functional at a very early stage of differentiation, in this respec ...m of response to any sort of excitation applied to the trunk region of the embryo, viz., a swim,ming reaction, and the same neurones are involved throughout

Translation by Jos6 F. Nonidez Carnegie Institution of Washington 8 1917 The microscopic structure of striped muscle in Limulus. Pub. 251, Carnegie Institution of Washington, pp. 273-290.

...ATION OF THE CAVITIES IN THE CARTILAGINOUS CAPSULE OF THE EAR IN THE HUMAN EMBRYO== Department of Embryology, Carnegie Institution of Washington, Baltimore,

...ording to age are clearly evident. Hatai ('08) in mature albino rats (over 150 days old) found the coefficient of variation for the gross body weight in 5 150 Body weight m grams

...hyme cells is relatively low, as their origin from the basal region of the embryo might lead us to expect. This being the case, they are less affected by sli ...(Child, 16 c). According to Boveri ('01 a, '01 b) the apico-basal axis of embryo and larva coincides with the axis of the growing oocyte in Strongylocentrot

C. W. M. PoYXTER. Some observations on wound healing in the early embryo. Twelve figures ...nd Atterbury. Bursa and tonsilla pharyngea; a note on the relations in the embryo calf. Eight figures 251

FIG. 18. IMBIBITION OF WATER BY Arbacia EGGS IN DILUTED SEA- WATER . 150 ...o him the problem: If the spermatic fluid might stimulate the heart of the embryo in the process of fertilization, why might not other fluids produce the sam

150 days the development of the embryo.

h) Communications of the "Institut International d'Embryo logie" (Embryological section of the I.U.B.S.) P List of members of the "In ...Uruguay. S. America. •BURNS. R. K. B.S., Ph.D., Prof. — Dep. of Embryol., Carnegie Inst.

...tion of the marsupial blastocyst with the trophoblast of the Eutheria, the embryo of the former, therefore, being without trophoblastic covering. ...on in similar conditions independently discovered by Patterson CIO) in the embryo of the Tatusia.

Translation by Joat V Nonidu Carnegie Institution Wuhington Translation by Jos6 P. Nonidez Carnegie Institution of Washington

...bryos were arranged accord- ing to measurement rather than age. The oldest embryo of the first series was 9.4 mm. in length, and the later series were select ...al cavity and in the pharynx, buds that resemble mature buds of the oldest embryo studied in all essential details except size. The later maturing of the tas

Embryo: nine to fourteen days’ incubation 12 ...nd. The realiza- tion of the expectation of finding cortical tissue in the embryo- logical stages of the right ovary was previously anticipated by Willier (

150 2.150

a. Chromosomes in the embryo 3 a. Chromosomes in the embryo

Fig. 1. Cephalic veins of a late embryo of Tropidonotus natrix, head 7.5 mm. long. X 24. After Grosser and Brezina, ...the jaw and runs dorsad on the lateral aspect of the pterygoid bone. In an embryo Lacerta Avith head 5.2 mm. long this vein is connected with the vena mandib

University of Cincinnati Carnegie Institution WARREN H. LEWIS Carnegie Laboratory oj Embryology, Johns Hopkins Medical School

...erning certain cytological characteristics of the erythroblasts in the pig embryo and the origin of non-nucleated erythrocytes by a process of cytoplasmic co ==The Development Of The Rectum In The Human Embryo==

...n unusual spatial conditions has been studied most fully by Mills ('98, p. 150), who in discussing the "sense of support" writes: "I have found in the cas ...ich we are not as yet able to refer to specific organs. James ('90, II, p. 150) has called attention to a fact that is significant in this connection ; "R

Fig. 23 Caudal end of a bo nun. Alustelus embryo. Note that the pores of canals of the head. In a 36 mm. embryo the lateral sensory

The youngest embryo in which any of the air-sacs appear as In the same embryo may be seen the first indication of the

...r H. Slifer, Insect development. If. Mitotic activity in the grassliopjier embryo. Two figures 013 ...trient organs, or pseudoplacenta, until shortly before birth. At birth the embryo is a little more than one-third the adult body length and bears strongly de

:Termination by resorption of the ovum, 34 — Death of the embryo with the formation of tubal mole, 34 — Tubal abortion, 34 — Rupture of ...ctopic pregnancy, 84 — Diagnosis of ectopic pregnancy, 85— The fate of the embryo in ectopic pregnancy, 87.

A. In a salmon embryo after Furst. The position of the cell body. They share in its trophic functions, as is nerve of an embryo of

Sthrtevant, a. H. 1919 Inherited linkage variations in the second chromosome. Carnegie Inst., Wash;, publ. 278, pp. 305-341. Beckwith, C. J. 1908 The earH history of the egg and embryo of certain hyclroids. Biol. Bull., vol. 16, pp. 183-193.

Henry Denison. Note on Pathological Changes found in the Embryo Pig and its Membranes, with one figure 2.~3 ...sents a section taken through the anterior thoracic region of a 16 mm. cat embryo in which both azygos veins are of large

...ples of the development of the systemic lymphatic vessels in the mammalian embryo 399 ...in E. Reinkb. Note on the presence of the fifth aortic arch in a 6 mm. pig embryo 453

...e from each and consequently no defects except in size would appear in the embryo. Experiments on later stages, however, indicate absence of localization as ...ved and the remaining one will develop into a perfectly normal but smaller embryo. Morgan- succeeded in producing such embryos and I have also been able to d

..., but entirely to left of median line and without keel. (Cf. fig. 6 of No. 150.) 150

...A study on the depth of penetration of ultraviolet light-ray energy in the embryo of the tadpole 323 ...gland form accessory glands. According to Keibel and ]\Iall, in the female embryo few glands are formed, three being the maximum number. These may undergo de

...er den Bau der Spinalganglienzellen bei einen viermonatlichen menschlichen Embryo. Arch. f. mikr. Anat., Bd. 59. 1901. ...ells through the following consistent explanation: while, in the course of embryo- logical development, the majority of ganglion cells become very much enlar

...hns Hopkins University and Director of the Department of Embryology of the Carnegie Institution of Washington. We who in thought lingered at his bedside during ...ion, the directorship of the newly created Department of Embryology of the Carnegie Institution of Washington. The University of Michigan honored him and honor

P. E. Smith. The effect of hypophysectomy in the early embryo upon the growth and development of the frog. Ten figures 57 ...in to function, lymph begins to collect in the intercellular spaces of the embryo and, as we know, is subseciuently collected by a set of newly formed vessel

food substances. Carnegie Institution of Washington, Publication ...ich was studied primarily by physicians to explain the growth of the human embryo, can likewise receive little attention in the medical school. These subject

...ennent have made experiments in which the paternal influence in the hybrid embryo was diminished. Tennent states that in the cross between Hipponoe and Toxop ' Tennent, Publication 132, Carnegie Institution, 1910.

...hem to enlarge and function. Again, that large venous network in the early embryo which is associated with the azygos vein and which later disappears may be ...pment of the lymphatics of the lungs of the embryo pig. Contrib. Embryol. (Carnegie Inst.), Wash., 1916, IV, 47.

...r regions of the body. The sweat glands first make their appearance in the embryo in these regions. These areas also lend themselves readily to an extensive American negro soldiers, 150 Filipino (Christian) soldiers and 100 ]\loro scouts. In addition we have ou

...e take place, as is shown in the caudal end of the Wolffian body of a deer embryo of 6.4 mm. (fig. 3), where the increased growth of one limb of the transver ...uricular canal, and the adult relations reproduce essentially those of the embryo. Hence their comihon histological characters in the adult and the intimate

...minal viscera through the spinal column; "\'eraguth COl) described a human embryo with ectopia of the spleen and intestines. Finally, in 1917, Williams descr ...ech., Bd. 11. Good, J. P. 1912 Spina bifida in the neck region of a ferret embryo 8 mm.

==On The Development Of The Blood-Vessels Of The Brain In The Human Embryo== ...teries had been injected with Prussian blue, which, together with numerous embryo pigs injected alive or immediately after death, form the basis of this stud

...the earliest neuro-muscular responses to tactile stimuli in the amphibian embryo. During the season of 1907 these experiments were continued upon embryos of ...with a most important phase of behavior, namely, its very beginning in the embryo. If, for instance, there is any such thing as a ^'simple reflex," such as S

arrow indicates the direction of the axis of the future embryo, b, bristle. ...de of the blastoderm is away from the observer, and the axis of the future embryo is ill a diagonal position, as indicated in Fig. 1. These fig-ures (A of th

150-160 Drainage. — Primary drainage has been used in 150 ca.«t

...isionally into three classes: ether-waves, which may have wavelengths from 150 to 800,a/j^, approximately; kathode rays, which undoubtedly are streams of ...salt solution left in abdomen. Pulse at beginning of operation 93, at end 150. Time of operation one hour and a half.

...Whether or not the ganglion cells observed by Rubaschin ('03) in the chick embryo represent cells of the nervus terminalis is problematical. This writer desc In the human embryo Johnston found essentially the same central relations as in the pig, but th

...s R. Stockard. The artificial production of eye abnormalities in the chick embryo. Two plates 33 ...uming a defect in the absorption of the primitive right aortic arch in the embryo. Absorption occurs ordinarih' distal to the point of origin of the right su

...probably for the carotids." Thus the evi ' See the figures of the skull in embryo marsupials, edentates, insectivores, etc., as figured by Broom, Parker and ...n so far as they lie between the pterygoids and the quadrates. Likewise in embryo mammals the cartilaginous alae temporalis are interpreted by Broom ('09) as

12. Osborne, T. B., and Mendel, L. B.: Publications of the Carnegie Institution of Washington, 1911, Bull. No. 156. 150

Howard Brown Stough. Modified mitosis in the chick embryo. Eight plates (sixty figures) 535 1. The embryo of the chick develops in its own egg entirely apart from the mother. For th

...and it is entirely possible that this region of the central cavity in the embryo was much more suggestive of the fourth ventricle. Judging from the adult al ...Tcr. and Dean that Polistotrema possesses well-developed ventricles in the embryo; the expansion being fully as great as in a similar stage of Petromyzon. As

...ems to be required for growth and development of the nervous tissue in the embryo. ...Institute for Medical Research. By cultivating in vitro parts of the chick embryo lens containing cells from the iris, a pure outgrowth of epithelial cells w

Iv*\ K. Wai.i.in. .V teaching model of a 10 mm. pig embryo. Three figures. 295 J«ur... |{ ('aim l)n the ilevflopmenl of the lymphatics in the heart of the embryo pig 451 KiTii It^Nh I III the relation of the licad chorda to the pharyngea

150. Edinger. Vorlesungen iiber den Bau der nervosen Zentralorgane des Menschen 150 ^Journal of Comparative Neurology aijd Psychology.

...inophilies, the fixed mesenchymal cells may also give rise to them. In the embryo, hematopoietic mesenchyme is widely distributed. In the adult the bone-marr Weight. 150 gms.