CONTENTS. IX 



PA8F, 



Reagan, Franklin Pearce — Origin of Vascular Endothelium and of Erythrocytes 287 



GuDERNATSCH, J. F. — Internal Secreliou 288 



Jenkinson, J. W. (the late) — Experimental Embryology 377 



Gatenby, J. Bronte — Sex of Tadpoles reared from Artificially Parthenogenetic 



Ova 378 



Werber, E. I. — Morphofjenesis of Monsters o79 



Purser, G. L. — Early Development of Spleen in Lepidosiren and Protopterus .. 380 



EwAUT. R. J. — Influence (f Age on Sex 380 



Itagakt, M. — Action of Corpus Luteum 381 



Rosenheim, Mart Christine — Occurrence of Spermine 381 



Tasigvcki.Yasabvro— Chemical Composition of Ovaries 381 



Sato, Shigeo — Life of Spermatozoa of Horse outside of the Body 381 



OcHi, Shin-Itsu — Life of Spermatozoa in Solution 381 



BouNHiOL, J. P. — Sex Dimorphism in Sardine of Algerian Coasts 881 



LoEB, Leo — Cyclic Changes in Mammalian Orary 435 



Hesselberg, Cora, & Leo Loeb — Cyclic Changes in Mammary Gland of Guinea- 

 pig 435 



Moore, C. R. — Can Artificially-activated Eggs be Fertilized ? 436 



Thompson, D'Arcy Wentworth — Groivth and Form 436 



Parker, Katherine M. — Development of Hypophysis and Related Structures in 



Marsupials 437 



Moschcotvitz, Eli — Ossification in Ovary 437 



OuTERBRiDGE, G. W. — Bone Formation in Ovary 438 



Pearl, Raymond, & Maynie R.Curtis — Dwarf-eggs of Domestic Fowl .. .. 438 



Frost, Howard B.—T/ie Term "Focf or" 438 



Riddle, Oscar — Control of Sex-ratio 439 



„ & others — Reproductive Processes in Birds 441 



BouLENGER, G. A. — Breeding Habits of the Mid wtfe-toad 442 



Goldschmidt, R. — Sex and Heredity 443 



Pearl, Raymond — Effect of Calcium Salts on Growth 444 



Goetsch, Emil — Influence of Pituitary Feeding on Growth and Sex Development 444 



Pearl, Raymond — Fertility and Age 4-15 



Sumner, F. B. — Superf elation and Deferred Fertilization amomi Mice 445 



Bell, W. Blair — Correlation of Internal Secretion and Female Sex Functions .. 445 



Smith. K. M., & H. G. Newth — Collar Cavities of Larval Amphioxus 446 



Reagan, Franklin Pearce — Development of Stapedial Plate 561 



„ „ Dependent Development 562 



Chapin, Catherine Lines — Microscopic Study of Reproductive System of Foetal 



Free-martins .. .. 563 



Braohet, A. — The Egg-cell and its Development .563 



Jordan, H. E. — Yolh-sac of Pig Embryo 567 



Anthony, R. — Embryonic Circulation in Stickleback .. .< .. ., 568 



Wintrebert, P. — Gastrulation in Selachians 568 



Jordan, H. E. — Atresia of QS<ophagus in Loggerhead Turtle Embryo 568 



Zeleny, C. — Rate of Regeneration 569 



b. Histologry 



Scott, W. J. M. — Modifications of Mitochondria 110 



Nicholson, XoRMAN C. — Variations of Mitochondria in Nerve-cells 110 



Jordan, H. E., & J. S. Ferguson — Text-hook of Histology Ill 



Salkind, J. — Comparative Study of Thymus 207 



