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...re are also sets of [[Carnegie stage 22 - selected serial sections]] and [[Carnegie stage 13 - serial sections]]. | [[:File:Stage 22 image 087.jpg|87]]

{{Carnegie stage 10 links}} ...rsal view of the human embryo, the amniotic membrane has been removed. Top embryo is an early stage 10, bottom is late stage 10.

...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}};

[[File:Heart Tube Segments.jpg|thumb|The embryo stage 10 heart tube]] ...grows rapidly creating an externally obvious cardiac "bulge" on the early embryo. The cardiovascular system is extensively remodelled throughout development

...in the embryo as at birth, but the deformities of the head and neck of the embryo are of such a nature that it can not survive long enough to admit of compar ...xomphaly. Other anomalies, however, are more difficult to recognize in the embryo as sharply defined malformations.

[[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

...int Louis University, Saint Louis, Missouri, and Department of Embryology, Carnegie Institution of Washington, Baltimore, Maryland ...identified by a number of external and internal characteristics, and each embryo at a given stage has a similar degree of organization and differentiation t

...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]]

...}</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

...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

...Bardeen]] describes intestinal development using human embryos from the [[Carnegie Collection]] and Wisconsin Collection. ...ils (figs. 3, 4). These coils now develop very rapidly so that in a 40 mm. embryo they approximate in extent the ileac coils in the umbilical cord (figs. 5,

...orsal concavity of the vertebral axis. Such a stage is represented by His’ embryo 3-2 mm., aged about 3 weeks. Inasmuch as embryos with this dorsal thoracic ...ntributions to Embryology, No. 22. Public. Carnegie Instit. Wash. 227, pp. 87-110.

[[Carnegie stage 10]] The chorion generally has a diameter of 8–15 mm. The greatest length of the embryo, although not of great informational value (Bartelmez and Evans, 1926), is

Development of this system commences in the embryo, continues through the fetal period then with key changes around birth, onl ...Reproductive development has a long maturation timecourse, begining in the embryo and finishing in puberty. (More? [[Puberty Development]])

==Appendix 1 - Embryos In The Carnegie Collection== The Carnegie specimens of stages 2-23 are listed in the following tables.

...les of the development of the systemic Jymphatic vessels in the manmialian embryo. Anat. Rec, vol. 4, no. 2, pp. 399-423. ...es. Publication no. 1S2 of th4 Carnegie Institution of Washington y pp. 77-87.

|[[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}

...e 19|stage 19]]; {{CE1584}} [[Carnegie stage 19|stage 19]]; {{CE1535}} [[Carnegie stage 23|stage 23]]. '''Modern Notes:''' {{embryonic}} | {{CRL}} | [[Carnegie Collection]]

...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

At the time the circulation begins in the chick, the embryo possesses a number of relatively large blood vessels. Thoma ('93) mentions ...s with the venous end of the heart and with the entire dorsal aorta of the embryo opposite the zone of the myotomes." That the heartbeat has much to do with

! width=120px|Carnegie Stage File:Keith1902 fig087.jpg|Fig. 87. Diagram of the Müllerian Ducts at the commencement of the 3rd month. Vent

'''University of Vienna''' - Institute of Histology and Embryology Embryo Collection * Embryo Bs - 26-27 pairs of somites [[Carnegie stage 12]] in [[Week 4]] (Somite pairs 21 - 29)

{{Carnegie stage 19 links}} {{Carnegie stage 20 links}}

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

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

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

=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

...les R. Essick describes human embryonic {{neural}} development using the [[Carnegie Collection]] embryos. [[Carnegie Embryos]] used in this study: {{CE227}}, {{CE75}} {{CE86}} {{CE145}} {{CE1

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

The measurements of the embryo are as follows: C.R., crown-rump or sitting height; C.H., crown—hee1 or s <div id="Carnegie Embryo 6"></div>

...pment of the trachea and esophagus and includes several embryos from the [[Carnegie Collection]]. Department Of Embryology, Carnegie Institution Of Washington, Baltimore, Maryland

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

...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}}

....jpg|90px|left]] This 1940 paper by Keith describes abnormalities in human embryo development. ...s case, too, the tragus shows a division or accessory auricle (4). In Fig. 87 these tags are represented by an ‘ amniotic adhesion ’—which after en

...y Atlas of the 13-mm. Pig Embryo. (Prefaced by younger stages of the chick embryo.) The Wistar Institute Press, Philadelphia, iv & 104 pp. ...so-called law of anteroposterior development. Anat. Rec., Vol. 33, pp. 73-87.

...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 mostly p

=Part V - The Care of the Developing Embryo= ...embryonic membranes, and in many species, the retention of the developing embryo within either maternal or paternal body structures (Chap. 22).

...ltttea associated with 7‘/3- and 9‘/3-day normal pregnancies respectively (Carnegie nos. {{CE8020}}, {{CE8215}}). Unfortunately, these sections, which were sta ===A 12- to 13-Day Pregnancy, Carnegie No. {{CE8558}}, S46-2767===

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

...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

...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

...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]]

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.

...t named after the 2 authors of a paper that divides the 21 days of chicken embryo development into 46 defined stages. These were published in: Series of Embr [[File:Stage23 embryo oral cavity 04.jpg|thumb|150px|alt=hard palate|link=Palate Development|hard

=A Presomite Human Embryo (Shaw) with Primitive Streak and Chorda Canal with special reference to the ...appreciation of the gift we have associated the name of Dr Shaw with this embryo.

ribs in a 30-mm. CR embryo, for some cervical and upper and of the tympanic annulus of a 42—mm. CR embryo by Mall

...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=

==Peters's Embryo - Yolk-sac== ...that Peters's specimen has no allantois. In describing another very young embryo he had recorded that "as compared with the embryonic shield, the allantois

...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}}

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

...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. The Corpus Luteum of Pregnancy As It Is in Swine. Carnegie Inst. Contr. Embryol. 5: 69.

...varian fragments of the white rat (Mus norvegicus albinus). Anat. Rec. 54, 87. 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

...arily spherical in form. Spherical cells are comparatively numerous in the embryo, and in the adult the resting white blood corpuscles, which float freely in A, From a 7 mm. embryo; B, from one of 26 mm.; ch, chroma tin knot; g. s, ground substance; 1, lin

[[File:Stage23 embryo oral cavity 04.jpg|thumb|150px|alt=Stage 23 embryo palate|link=Palate Development|Human Palate (Week 8)]] ...e upper lip, maxilla and primary palate. Palate formation commences in the embryo with the primary palate formation and then completed in the early fetus by

...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=

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.

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.

...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

...evident as a protuberance (see His-Ziegler model of brain of 13.6mm human embryo). As the brain enlarges, the pallium envelops the basal ganglia and the tha ...nd regression of reflexes, postures, and progression in the young macaque. Carnegie Inst. of Washington Publ. 541, Contrib. to Embryol., no. 196, pp. 153-209.

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,

...oker from the Penrose Fund of the American Philosophical Society, from the Carnegie Corporation of New York, and from the University of Pittsburgh. ...lar components in the thoracic portion of the spinal cord of a 55-cm. calf embryo. He corroborated the findings of Ramon y Cajal in general but declared tha

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

...an ovum 1.5 x 2.5 mm. was situated. It had but few villi and contained an embryo in a very rudimentary stage. Between the surfaces of the chorion and uterin ...the ovum has entered the mucosa. My ovum does not show any "Anlage" of an embryo and therefore must be younger than that of Peters, in which an amniotic cav

The next to use the sow for study was Paladino (79, '80, '81, '87), who collected about 500 corpora lutea of 100 sows. His extensive papers p ...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

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

...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

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

...uation of the temporary arrangement was not granted by the trustees of the Carnegie Institution, and the original proposal lapsed. The independence of the Labo ...d egg slumbers potentially the future embryo. While we cannot say that the embryo is predehneated we can say that it is predetermined" — words almost preci

...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

...deals of organization of the Laboratory. This was when the newly organized Carnegie Institution organization was generously offered by the Carnegie Institution.

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

...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.

...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

...a phototropic reaction toward light {Engelmann, ’85; van Genderen Start, ’87). Rods A. In a salmon embryo after Furst. The position 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. '

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.

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

...elmez. Mauthner's cell and the nucleus motorius tegmenti. Thirteen figures 87 ...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

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.

...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

...f the Scala tympani, Scala vestibuli and perioticular cistern in the human embryo. Nine figures 299 87.58 87.17 81.63 77.00 69.50 54 42

...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

II. Description of a swell mechanism in the head of Ophidia 87 A. The musculus constrictor venae jugularis internse 87

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

...author's famous 'Studien, in which the account was published, Caldwell's ('87) interpretation of the outer envelope of the marsupial egg as the shell mem ...hich furnished the 16 eggs that formed the basis of his account (Selenka, '87) of cleavage and blastocyst formation.

the development of the embryo. Exper. Biol. & Med., 94, 87.

Staff Member, Department of Embryology, Carnegie Institution Of Washington. Baltimore. Maryland 87

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.

...region. This condition also appears frequently in recovery forms (pp. 85, 87, 88). LARVAL DEVELOPMENT IN THE SEA URCHIN 87

...) stated that there are present in the developing islet cells of the sheep embryo minute safranophile granules. These have since been observed by Laguesse (' Bizzozero and Vassale ('87), Laguesse ('95-'96), Ssobolew ('02), Lane ('07-'08), and others record tha

...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

...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

C. W. M. PoYXTER. Some observations on wound healing in the early embryo. Twelve figures ...nt. Vascular abnormalities in a domestic cat (Felis domestica). One figure 87

Mabel Bishop. The nervous system of a two-headed pig embryo. Twenty figures 379 10.87

...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==

87 87

...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

...bino rat (Mus nor vegicus albinus) according to body weight. Twelve charts 87 According to this formula, the fraternal variability would amorunt to about 87 per cent of the racial variability. Compared with these figures the fratern

...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.

851 86 J 87 ...idently would have shown less conformity if they had been obser\^ed in the embryo stage. (JSTewmann's Fig, 38.)

...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

87.5 ...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

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

...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

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

...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

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

Translation by Jos6 F. Nonidez Carnegie Institution of Washington ...to the effect that this membrane is occasionally double. Meigs/^ on pages 87 and 88 of his paper on cross-striated muscle, says that in the wing-muscle

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

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

87 ...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

87.5 87

==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

was 87 grams; this body weight calls for nearly 1.09 grams of testes, while the ob ...us albinus) according to body weight. Am. Jour. Anat., vol. 15, no. 1, pp. 87-119.

...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

Weakness 87 (29% ) Pain on voiding 87 (29%)

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 (

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

The effect on thoracic form of complete destruction of one lung 87 SPOLIA ANATOMICA 87

...A polyembryonic blastocyst in the opossum. (Jne text figure and two plates 87 Iv*\ K. Wai.i.in. .V teaching model of a 10 mm. pig embryo. Three figures. 295

...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

...er J cent of the length, they found the brachycephalic index to be 81, 83, 87, 88, 94, and 100 in the series. They also noted an increased circumference 87 Hi

...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

...Report of the President of the Brain Commission (Br. C). By W. Waldeyer . 87 Nansen ('87) described the structure of the nerve cells of Patella vulgata, Nereis, Lum

Kappers, TeJeostean and Selachian Brain. 87 87. Herrick, C. L. The Commissures and Histology of the Teleostean Brain. Anat

...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

Exhibits 87 ...ems to be required for growth and development of the nervous tissue in the embryo.

Howard Brown Stough. Modified mitosis in the chick embryo. Eight plates (sixty figures) 535 ..., Edinger (’77), Luchhau (’78), Garel (’79), Cattaneo (’86, ’87), Decker (’87), and Oppel (’96).

...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.

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

...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

The pus obtained on the 10th of March reached the Carnegie Laboratory on the 11th, accompanied by a message stating that it came from ...2l8t of September was collected in a sterilized test-tube and sent to the Carnegie Laboratory. It was delayed in transit and had an offensive odor when receiv

...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 ..., with a bearing on the embryology of the lymphatic system. Wash.. 1915. — Carnegie Inst.. Wash.. Publ. No.