EMBRYOLOGY. 



No. 191. WEED, LEWIS H. A Reconstruction of the Nuclear Masses in the Lower 

 Portions of the Human Brain-Stem. (Contribution to Embryology.) 

 Quarto, 78 pages, vi plates. Published 1914. Price $2.50. 



This comprises a study of the form and relations of the collections of ganglion 

 cells making up the nuclei of the upper cervical cord and medulla of the adult 

 human brain. It is a description of a model made by reconstructing, in wax, a 

 series of 1900 cross-sections, 40 /x thick, taken through a normal human brain stem, 

 treated by the Weigert-Pal method. This model is illustrated from the dorsal, 

 lateral, and ventral aspects, and embraces a special morphological study of the 

 nucleus olivaris inferior. The conformation of each nuclear mass is described in 

 its relation to the surface and to the surrounding structures. 



No. 221. MALL, FRANKLIN P. On the Fate of the Human Embryo in Tubal Preg- 

 nancy. (Contribution to Embryology, No. 1. Vol. I.) Quarto, 104 

 pages, 11 plates, 24 text figures. Published 1915. Price $5.00. 



This monograph on the fate of the human ovum in tubal pregnancy is based on 

 the study of 146 specimens which have been collected by about 100 physicians in 

 various parts of the United States and Asia during the past 18 years. The 

 scope of the work is not only embryological but etiological that is, the cause of 

 tubal pregnancy receives due consideration. The anatomy of the Fallopian tube is 

 first considered, after which there is a discussion of normal specimens which are 

 found implanted in the tube. Pathological embryos, which are frequently en- 

 countered, are discussed, and pathological ova without embryos are also consid- 

 ered. The facts observed support the theory of an inflammatory causation. In 

 about 90 per cent of the cases it is found that the embryo is also diseased or 

 arrested in development. 



No. 222. Contributions to Embryology, Nos. 2, 3, 4, 5, and 6. Vol. II. Quarto, 

 108 pages. Published 1915. Price $3.00. 



This book contains the following papers, not sold separately: 



WATT, JAMES C. Description of Two Young Twin Human Embryos with 17-19 

 paired Somites. (Contribution No. 2.) 39 pages, 4 plates, 7 figs. 



CLARK, ELIOT R. An Anomaly of the Thoracic Duct with a bearing on the 

 Embryology of the Lymphatic System. (Contribution No. 3.) 10 pages, 3 figs. 



MEYER, A. W. Fields, Graphs, and other Data on Fetal Growth. (Contribu- 

 tion No. 4.) 14 pages, 13 figs. 



CORNER, GEORGE W. The Corpus Luteum of Pregnancy, as it is in Swine. (Con- 

 tribution No. 5.) 24 pages, 3 plates. 



ESSICK, CHARLES R. Transitory Cavities in the Corpus Striatum of the Human 

 Embryo. (Contribution No. 6.) 14 pages, 3 plates. 



No. 223. Contributions to Embryology, Nos. 7, 8, and 9. Vol. III. Quarto, 90 



pages. Published 1915. Price $5.00. 

 This book contains the following papers, not sold separately: 



SABIN, FLORENCE R. On the Fate of the Posterior Cardinal Veins and their 



relation to the Development of the Vena Cava and Azygos in the Embryo 



Pig. (Contribution No. 7.) 32 pages, 7 plates. 

 DUESBERG, J. Recherches Cytologiques sur la Fecondation des Ascidiens et sur 



leur Developpement. (Contribution No. 8.) 38 pages, 3 plates. 

 SHIPLEY, PAUL G., and GEORGE B. WISLOCKI. The Histology of the Poison Glands 



of Bufo aqua and its bearing upon the formation of Epinephrin within the 



Glands. (Contribution No. 9.) 20 pages, 2 plates. 



No. 224. Contributions to Embryology, Nos. 10, 11, 12, and 13. Vol. IV. Quarto, 

 106 pages. Published 1916. Price $3.00. 



This book contains the following papers, not sold separately: 



MALL, F. P. The Human Magma Reticule in Normal and in Pathological 



Development. (Contribution No. 10.) 22 pages, 3 plates. 

 COWDRY, E. V. The Structure of Chromophile Cells of the Nervous System. 



(Contribution No. u.) 18 pages, i plate. 

 CUNNINGHAM, R. S. On the Development of the Lymphatics of the Lungs in 



the Embryo Pig. (Contribution No. 12.) 24 pages, 5 plates. 

 MACKLIN, CHARLES C. Binucleate Cells in Tissue Cultures. (Contribution No. 13.) 



38 pages, 70 figs. 



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