CONTENTS. Vll 



PAGE 



Sumner, F. B. — Siiperfoetation in Mice 230 



KiKKHAM, W. B. — Fate of Homozygous Yelloio 31 ice 231 



Stark, Mary B. — Bereditary Tumour 231 



Schmidt, W. J. — Neural Plateg af Chelonian Carapace 231 



GhASKB., O. C— Neural Folds 232 



UAKSo^,F.B.—CoracoidofPig 232 



Morrill, C. V. — Symmetry Reversal and Mirror-imaging in Monstrous Trout . . 232 



Atterbuky, Ruth Rand — Pharyngeal Tonsil and Bursa in Calf 232 



Moore, Carl R. — Influence of Gonads in White Rats 233 



Danforth, C. H. — Possihilily of Differential Selection of Germ-cells in Fowl .. .. 283 



GooDALE, H. D. — Interstitial Cells in Gonads of Fowl 233 



Allen, Ezra — Diet and Testicular Degeneration in Rat 234 



Thomson, Arthur — Maturation of Human Ovum 329 



Streeter, George L. — Formation of Single-ovum, Twins 329 



Danforth, C H. — Selection among Germ-cells 330 



GooDALE, H. D., & Grace Macmullen — Winter Egg-production in Poultry .. 330 



Carazzi, D. — Development of Guinea-Pig (1 &g.) 330 



Hanson, Frank Blair — Development of Pig's Siermim 331 



Goodrich, Edwin S. — Development of Pericardio-peritonenl Canals in Selachians 331 



Cull, S. T. Wallis — Spina bifida in very early Human Emhrijo 332 



HosKiNS, E. R., & M. M. — Influence of Thyroid on Growth and Development of 



Amphibia 332 



King, Helen Dean — Inbreeding-effects in Albino Rats 332 



Stewart, Chester A. — Underfeeding Rats 333 



Moore, Carl R. — Gonads as Controllers of Characteristics 333 



LiPSCHi'TZ, A. — Sex-characters and Sex-glands 333 



Murray, John G., Jun. — Relation of Ovary to Causation of Sep .. 333 



Champy, Ch., & P. Colle — Correlation between Pigeon s Crop and Gonads .. .. 334 



b. Histologry. 



Clark, Eleanor Linton, & Eliot H. Clark — Vital Staining of Tadpole's Tail 29 



Jordan, H. E. — Histogenesis of Blood-platelets in Yolk-sac of Pig 29 



McJunkin, F. A. — Origin of Phagocytic Mononuclear Cells 29 



Scammon, R. E. — Structure of Corpus adiposum bnccx 30 



Holmgren, Nils — Epiphysis of Dogfish 30 



„ — Parietal Organs of Frog 30 



,. „ — Epiphysis Nerves in Sprat and Herring 31 



Sumner, F. B., & H. H. Collins — Autotomy in Pocket Mice .. 31 



Allen, Bennett M. — Experiments on Tadpoles 31 



„ „ — Endocrine Glands of Frog and Toad 31 



Larson, Mary Elizabeth — Endocrine Glands of Toad 31 



Riddle, Oscar — Hereditary Ataxia in Pigeons .. 32 



Koch, Mathilda L., & Oscar Riddle — Analysis of Ataxic Brains of Pigeons .. 32 



Southwell, T., & B. Prashad — Tumours in Climbing Perch 32 



Matsumoto, Shiniohi — Epithelial Movement in Tissue t^'ulture 130 



„ — Cell Mo cements in Corneal Epithelium 131 



Boktnowsky, Isaac — Minute Structure of Monkey's Pharynx 131 



Retterer, Ed. — Structure and Origin of Dentary E7iamel 131 



„ . „ —Cortex of Roots of Teeth 131 



Redfield. Alfred C. — Melanophores of Horned Toad 132 



MuRisiER, P. — Division of Melanophores of Trout 132 



