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| <center>74</center> ! width=100px|Embryo<br>no.

...n either age or size. The human embryonic period proper is divided into 23 Carnegie stages. Criteria beyond morphological features include age in days, number ...an take from as little as 10 days in chickens to nearly 60 days in humans. Carnegie is the name of a historical US Institute that historically categorised thes

...re are also sets of [[Carnegie stage 22 - selected serial sections]] and [[Carnegie stage 13 - serial sections]]. | [[:File:Stage 22 image 074.jpg|74]]

See also [[Carnegie stage 15#Events|'''Carnegie stage 15 Events''']] {{Carnegie stage 15 links}}

...ection]. Prof Diewert has also visited both the [[Kyoto Collection]] and [[Carnegie Collection]] annotating palate and face development in these embryos. ...rs#Prof_Virginia_Diewert|contributors]] | [[Palate Development]] | [[Human Embryo Collections]] | [https://human-embryology.org/wiki/Perry-Arey-Milligan_Coll

...hilly 1987|link=Embryology History - Ronan O'Rahilly|Ronan O'Rahilly (1987 Carnegie Labs)]] ...t study,<ref name=Weller1933>{{Ref-Weller1933}}</ref> used the following [[Carnegie Collection]] embryos: stage {{CS9}} (No. {{CE1878}}), {{CS10}} ({{CE391}};

..., St. Louis University, Missouri until 1969 when he became Director of the Carnegie Laboratories of Embryology in Baltimore, Maryland. ...ogy History - Fabiola Müller|Fabiola Müller]] based upon studies of the [[Carnegie Collection]] of human embryos.

[[Carnegie stage 2]] ...olated from the mammalian 2-cell organism is capable of forming a complete embryo. Separation of the early blastomeres is believed to account for about one-t

{{Carnegie stage 1 links}} {{Carnegie stage 2 links}}

...sion]] and [[Movie_-_Model_Embryo_to_128_Cell_Stage|Flash version]]. Added Carnegie collection [[Carnegie_stage_8#Carnegie_Collection|stage 8 images]]. ...- Model Embryo to 32 Cell Stage‎‎|Quicktime version]] and [[Movie - Model Embryo to 32 Cell Stage‎‎|Flash version]].

...to age fetuses based upon their bone ossification using embryos from the [[Carnegie Collection]]. ...ers) 2 3 Up to so 69 3 19 81-135 115 ‘ 4 32 136-175 157 5 54 176-215 194 6 74 216-255 233 41 M 33 F 7 ’ 67 256-285 272 48 M 274 19 F 268 8 62 286-315 2

* Embryo 1 - 17th day of the menstrual cycle, ovulation probably occurred less than * Embryo 2 - 16th day of the cycle; coitus had taken place 2 and 4 days previously.

...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}}.]]

[[File:Human Carnegie stage 10-23.jpg|thumb|300px|Carnegie Embryos]] ...collection numbering also incorporated the Blechschmidt embryo collection (Carnegie Nos. 10315-10434 ) in 1972, the collection embryos have now been returned t

| {{Embryo citation}} * Aboriginal and Torres Strait Islander women the rate of NTDs decreased by 74%

...the [[Harvard Collection|Harvard Embryological Collection (H.E.C.)]] and [[Carnegie Collection]]. ...ng twelve species as follows: seventy series of human embryos, from 2.4 to 74 mm. in (CR) length; twenty-six of the cat, 4.6 to 39 mm.; five of the dog,

...}</ref> Later in 1921 along with Mall published a review of abnormal human embryo development.<ref>{{Ref-Mall1921}}</ref> ...lips of the blastopore (in the late gastrula stage) to other parts of the embryo and found that as expected they differentiated into structures characterist

...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:Mark_Hill.jpg|50px|left]] This historic 1956 paper describes using [[Carnegie Collection]] early human development in week 2 and 3. [[Carnegie Embryos|Carnegie Embryos in this paper]]: {{CE8698}} | {{CE8794}} | {{CE8663|}} | {{CE8663}

...uld be clearly timed in the mouse and found in the literature on the human embryo. ...lation and fertilization times were unascertainable so that the age of the embryo is determined by the mating time plus or minus 30 minutes. The time for mat

...istoric histological study of the development of the meninges of the human embryo spinal cord. Our current understanding of interstitial cell development and ...by the Department of Embryology, sincere appreciation is expressed to the Carnegie Institution of Washington, and to Dr. G. W. Corner, Director. The author is

...blood, excrete waste, reabsorb water and have endocrine functions. In the embryo, there are several stages in their development closely linked to genital de | {{Embryo logocitation}}

...s human embryo collection that will eventually form the beginning of the [[Carnegie Collection]]. ...Developmental Alterations in the Vascular System of the Brain of the Human Embryo]]. (1921) [[Book_-_Contributions_to_Embryology#Volume_VIII|Contrib. to Embr

...are not Carnegie stages, use the embryo CRL to approximately convert to [[Carnegie Stages]]. ...bryology_15|Historic - Urogenital Development]] | [[Carnegie Embryos]] | [[Carnegie Collection]]

...r and heart grow rapidly forming obvious external swellings on the ventral embryo surface. The liver's initial embryonic function is mainly {{cardiovascular} ...man_Embryology_17-7|1912 Liver]] | [[Paper - Functions of the liver in the embryo|1920 Embryonic Function]] | [[Book_-_Text-Book_of_Embryology_12#The_Develop

...:Stage10_neural_sm.jpg|thumb|300px|Neural groove closing to neural tube<br>Embryo early week 4 ([[Carnegie_stage_10|Stage 10]])]] ...transverse section week 8|Spinal cord transverse section<br>Embryo week 8 (Carnegie Stage {{CS22}})]]

...|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

[[File:Stage18 em11.jpg|thumb|300px|Human Embryo Face ([[Week 7]], [[Carnegie stage 18]], 44 - 48 days, CRL 13 - 17 mm)]] ...n human embryos and fetuses has not been systematically analyzed using the Carnegie stage (CS) to standardize documentation of development. The anlage of LVP s

Department of Embryology, Carnegie Institution of Washington, Baltimore, Maryland, and Department of Zoology, ...rvated by the oculomotor. Bonnet (1901) likewise found, in a 16-somite dog embryo, a pair of mesodermal condensations derived from a medial mass of cells at

The principal relations of the axial artery of the embryo have been established by the present study. An adequate account of the rela ...form is that of DeVriese, which appeared in 1902. It deals with the human embryo. The other papers contained in the literature of the subject are concerned

=Chapter III. The Human Embryo= ==Calculation of the Age of the Human Embryo==

...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]]

...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.

...ost successful on record — carried out by my friend, H. D. Goodale, at the Carnegie Laboratory at Cold Spring Harbor. One case" is that of a female Mallard duc ...o an important internal secretion. If the sac-like glands are removed, the embryo fails to become attached to the wall of the uterus of the mother. If the ov

...d in a majority of gilts in which all of the uterus was removed except one embryo and its corresponding portion of uterine horn on the 12th day of pregnancy. ...lation Alone Sufficient to Cause Formation of Corpora Lutea? Endocrinology 74:14.

...description of the transitory cavities in the corpus striatum of the human embryo. =Transitory Cavities in the Corpus Striatum of the Human Embryo=

...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

...foetus. Edinburgh. , 1904. Manual of antenatal pathology and hygiene. The embryo. Edinburgh. DANDY, W. E., 1910. A human embryo with seven pairs of somites measuring about 2 mm. in length. Amer. Jour. An

...bit and in the great omentum of the cat, and independently by Schaefer 10 (74) in the subcutaneous tissue of the new-born rat, and subsequently confirmed ...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

...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.

aorta (fig. 4). With the growth of the embryo and the beginning formation of the the ventral or retroperitoneal sac in a pig embryo 7.8 cm., after it had begun to

...logue.jpg|200px|alt=Orts Llorca Madrid embryo catalogue|Orts Llorca Madrid embryo catalogue|left]] ...ble us to draw the following conclusions. The truncus appears in the human embryo, between Stages XII and XIII, as a portion of the aortic sac which invagina

...y Atlas of the 13-mm. Pig Embryo. (Prefaced by younger stages of the chick embryo.) The Wistar Institute Press, Philadelphia, iv & 104 pp. Corner, G. W., 1915. The corpus luteum of pregnancy as it is in swine. Carnegie Inst., Contrib. to E-mbryoL, Vol. 2, pp. 69-94.

Department of Embryology, Carnegie Institution of Washington, Baltimore, Mn. ...th its associated tiny mass of protoplasm, which alone will make the chick embryo, becomes all but lost on the surface of the yolk. But that speck of protopl

...s human embryo collection that will eventually form the beginning of the [[Carnegie Collection]]. This page is still a draft version with text editing and figu Some of the numbered embryo used in this paper:

...a critical function in the transport and development of the oocyte and/or embryo. In most vertebrates, both sexes initially develop Müllerian ducts during :'''Carnegie stage 18''' - Mullerian duct to the coelomic cavity was formed as the resul

...lection [[:Category:Carnegie Embryo 1399|Embryo No.1399]], classified as [[Carnegie stage 8|'''Stage 8''']] occurring during [[Week 3]]. ...Poor || Formol || P || Trans. || 10 || {{HE}} etc. || 1916 || "Mateer embryo" described by Streeter (1920) <ref>{{Ref-Streeter1920a}}</ref>

...treeter (1873-1948)]] describes the [[:Category:Carnegie Embryo 2|Carnegie Embryo No. 2]] [[Carnegie_stage_15|stage 15]] was first described in {{Ref-Mall189 {{Carnegie stage 15 links}}

...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]]

Acting Lecturer and Demonstrator in Anatomy, University College, London; tate Carnegie Research Fellow in Embryology, and Assistant in the Depariment of Anatomy, ...with the mode of formation of the pre-umbilical portion of the body of the embryo.

[[File:Stage 22 image 223.jpg|thumb|Aorta filled with red blood cells ([[Carnegie stage 22]], [[Week 8]])]] ...ells to different organs ({{liver}}, {{spleen}} and {{thymus}}) within the embryo and fetus. In the adult, these stem cells are located in the {{bone marrow

===History of the use of the Mouse Embryo Model=== ...(Hendrich et al. 2004). During the twentieth century, the use of the mouse embryo in particular, has increased significantly, and continues to be a popular e

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

...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 ...stage stage F —eight cell stage ( \fter Lev is and Hartman 1933 ) of tf e Carnegie Institution of Washington y c *00

embryo. ==Embryo==

Carnegie Institution of Washington - Year Book No. 37 Published By Carnegie Institution Of Washington

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,

=Transformation of the Aortic-Arch System during the Development of the Human Embryo= ...he arterial system of a 22-somite embryo ([[:Category:Carnegie Embryo 2053|Embryo No. 2053]], length 3 mm).]]

...emely important because it implies that the mitochondrial endowment of the embryo is exclusively maternal in derivation. ...onsidering the possibility that fertilization of a polar body, followed by embryo development, may take place (57).

...of the internal carotid artery is, of course, the third aortic arch of the embryo. 2) It is supplied by a very characteristic branch of the ninth or glossoph Fig. 1 Calf embryo; 14-mm. reconstruction drawing of the region of the carotid body.

...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]]

...ablation of the corpus luteum upon embryos and uterus. Am. J. Physiol. 86, 74. Fuss, A. 1911. Uber extraregioniaire Geschlechtzellen bei einem Menschhchen Embryo von vier wochen. Anat. Am. 39, 407.

...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

...he total number of somatic segments represented in the average ii mm human embryo (the time of maximum number) is 42 to 44 (fit, 391) The first occipital (Ar In a human embryo of about 5 mm the cells of the ventro-medial portion of, for example, the f

...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

...the early development of the neural folds and sensory anlagen of the human embryo. ...ez and Evans’ (’25) significant monograph on “The development of the human embryo during the period of somite formation, including embryos with 2 to 16 pairs

...ing a number 0f [[Carnegie Collection]] embryos. Note in addition to the [[Carnegie Stages]] (horizons) the term "stage" is used within this paper to describe Department of Embryology, Carnegie Institution of Washington, Baltimore; Division of Neurologicall Surgery, Un

...ernal appearance and dimensions suggest that it is a [[Carnegie stage 19]] embryo ([[Week 7]], 48 - 51 days, 16 - 18 mm). {{Carnegie stage 19 links}}

Koelliker (’7 9) has noted in a rabbit embryo of eleven days a close relation between the anterior end of the notochord a caudal surface of Rathke’s pouch. In a 4.5-mm. embryo he saw

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

...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=

...some way this morphology of the egg is . related to the morphology of the embryo developed from the egg, and hence is called its promorphology. ,, ...materials in general related with the vegetative organs of the developing embryo.

site of a developing ovum. (From Carnegie Institution, No. C467.) coUiculi. (From Carnegie Institution, No. C713.)

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

WASHINGTON, D. C. Published by the Carnegie Institution of Washington 1911 Carnegie Institution of Washington, Publication No. 142

...as those used in the study of the nucleus dorsalis (Hogg, "44, table 1, p. 74). The silver methods used were those recommended by Ranson (’11) and ‘B ...oker from the Penrose Fund of the American Philosophical Society, from the Carnegie Corporation of New York, and from the University of Pittsburgh.

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

...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

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

...ls sie stehenden Wirbelthieren, erseheinen aber aueh bei dem menselilieben Embryo nieht vor Ablauf der ersten beiden Monate nach der Bmpfangniss. ...it they communicate with the exterior by a common opening. In the 4.75-mm. embryo (fig. 7) the naso-hypophyseal invagination has shifted toward the dorsal si

...dly number of which have appeared from the Department of Embryology of the Carnegie Institution of Washington. ...generosity of Dr. Carl G. Hartman from the Department of Embryology of the Carnegie Institution. These three macaque monkeys (Macaca mulatta) were killed on th

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

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.

...act that it was once thought that a very large portion of each side of the embryo always originated from this ring in a manner to be described below (see con ...mass (epiboly). From Kellicott (General Embryology). After 0. Hertwig. e. Embryo. gr. Posterior margin of the germ ring. y. Yolk mass. 1, 2, 3, 4, successiv

...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

...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

...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 ...kes the forward swimming movement possible is the flagellum or tail (figs. 74, 77, 78, 79). A two-tailed sperm or one in which the flagellate mechanism i

Carnegie Institution Of Washington, Department Of Embryology, The Johns Hopkins Univ in the embryo is controlled by a hormone,

...f the Scala tympani, Scala vestibuli and perioticular cistern in the human embryo. Nine figures 299 Embryo 12.84

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.

...bit and in the great omentum of the cat, and independently by Schaefer 10 (74) in the subcutaneous tissue of the new-born rat, and subsequently confirmed ...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

: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

74 0.74

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

Staff Member, Department of Embryology, Carnegie Institution Of Washington. Baltimore. Maryland T locus. J. Morphol., 74, 131-187.

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

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

15, 23, 26, 32, 37, 39, 44, 47, 48, 50 to 54, 64, 65, 70, 72 and 74. Fig. 23 Caudal end of a bo nun. Alustelus embryo. Note that the pores of

...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 ...the diverse modifications which it undergoes, all the other organs 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.

...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

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

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

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.

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.

...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.

...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.

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

14.74 74.8

...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

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

...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==

Literature cited 74 ...cially in the young of certain species (e. g., of Thalassochelys, cf. Fig. 74:). In the further course of evolution these remnants became either complete

described by Merkel {loc. cit., supra, p. 74), can be seen with the naked eye, by reason of their surrounding pigment, o ...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

Mabel Bishop. The nervous system of a two-headed pig embryo. Twenty figures 379 74

...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

...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

74 C. M. CHILD ...neration after a few days (figs. 47, 48) as in differential inhibition (p. 74), leaving anenteric forms which may remain alive for several days longer.

==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

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

...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

...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

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,

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

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

...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

...) 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

0.74' ...esearch rooms" at Woods Hole wishes to acknowledge his indebtedness to the Carnegie Institution for the opportunities thus presented for the carrying on of thi

...ow that in the male the relative weight of the liver forms an average of 4.74 per cent of the body weight at birth. Unlike the organs previously consider Lungs i 0.74

Sthrtevant, a. H. 1919 Inherited linkage variations in the second chromosome. Carnegie Inst., Wash;, publ. 278, pp. 305-341. 74

* Books received 74 ...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

74 ARTHUR WILLIAM MEYER ...logic der Hypophysis cerebri einiger Saiiger. .Vrch. f. mikro. Anat., vol. 74.

74 C." The brood cycle, continued 74

...ifth year. Eight years ago, (the patient was then 11 years old), he wore a 74 size hat. The head grew somewhat after that, but for several years tliere h 86 67 77 70 81 59 74 74

food substances. Carnegie Institution of Washington, Publication ...zur Physiologic der Magendriisen. Arch, gesammte Physiol., Bd. 48, pp. 63-74.

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

...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

seven years iu 168 patients (74^). 74.0%

...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

...Jackson on Merkel's Ilandbuch der Topographischen Anatomie . . . ."\> ... 74 E. T. Bell on Cunningham's Manual of Practical Anatomy 76 Henry Denison. Note on Pathological Changes found in the Embryo Pig and its Membranes, with one figure 2.~3

...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

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

74.91 ...ogy, With An Appendix On The Arteries And Veins In A Thirty Millimeter Pig Embryo==

74 'Journal of Comparative Neurology and Psychology. ...er den Bau der Spinalganglienzellen bei einen viermonatlichen menschlichen Embryo. Arch. f. mikr. Anat., Bd. 59. 1901.

...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.

...s Capsulatus under Anaerobic Conditions. By Edward K. Dunham, M. D., - - - 74 The pus obtained on the 10th of March reached the Carnegie Laboratory on the 11th, accompanied by a message stating that it came from

Printing and stationery 86.74 ...ems to be required for growth and development of the nervous tissue in the embryo.

...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 ...y we find that Rat A and Rat C of the second generation bred at the age of 74 days, as compared with 104 days, or 3i months, in the ease of the parent pa

...es at term, 379 were spontaneous and 63 were operative, an incidence of 85.74 and 14.36 per cent respectively. Of the latter 18 were in whites and 45 in ...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

74 yoiirnal of Comparative Neurology and Psychology. 74. AuERBACH. Die Lobi optici der Teleostier und die Vierhiigel der hoher orga