7 
Contents — continued from page 1 
SUMMARY OF CURRENT RESEARCHES . 
ZOOLOGY. 
VERTEBEATA. 
a. Embryolog-y, Evolution, Heredity, Reproduction, 
and Allied Subjects. 
PAGE. 
Fraenkel, M . — Irradiation of Young Guinea-pigs 271 
Riddle, Oscar — Effects of Altered Oxygen Pressure on Dove Embryos 271 
Horning, B., & H. B. Torrey — Hen- feathering induced in Male Fowls 272 
Murisier, P . — Gynandromorph Fowl 272 
Lipschutz, A., & others —Interstitial Cells in Testis of Guinea-pig (2 figs.) .. .. 273 
Lecaillon, A . — Duclt Hybrids 273 
Riddle, Oscar — Inadequate Egg-shells in Pigeons 273 
„ — Differential Survival of Male and Female Dove Embryos in In- 
creased and Decreased Pressures of Oxygen 27F 
Breder, C. M., Jun . — Hermaphroditism of a Croaker (1 fig.) .. .. 274 
Bhattacharya, D. R . — Persistent Oviducts and Abnormal Testes in a Male Frog 275 
McCarrison, R . — Effects of Fat Excess on Tadpoles 275 
Geiser, S. W . — Sexes in Top-minnow 275 
Riddell, W . — Hermaphrodite Amphioxus 275 
b. Histolog-y. 
Grynfeltt, E. — Shar peg’s Fibres .. .. 276 
Gray, J . — Ciliary Movement 276 
Hogben, L. T., & F. R. Winton — Beaction of Frog’s Melanophores to Pituitary 
Extracts 276 
Mawas, J . — Spiral Valve of Larval Lamprey 276 
7- General. 
Heilbrunn, L. V . — Colloid Chemistry of Protoplasm 277 
Trotter, Mildred — Facial Hair in While and Negro Races 277 
Hjort, J. — Fat-soluble Vitamines in Marine Organisms 277 
Raymond, Percy E . — Seaside Notes 277 
Policard, A., & Juliana Tritchkovitch — Fixation of Fats by Cortex of Supra- 
renals .. .. 278 
Stern, L., & G. de Morsier — Functions of the Spleen .. 278 
Longley, W. H . — Habits of Tortugas Fishes 278 
Born and, M . — Poisoning Fishes with Lime 278 
INVERTEBRATA. 
Mollusca. 
7* Gastropoda. 
Colton, H. S . — Five Years of a Self -fertilized Line of Limnsea columella .. .. 278 
Crozier, W. J., & W. H. Cole — Circus Movements in Slug . 279 
Powers, Sidney — Gastropod Trails in Pennsylvanian Sandstones in Texas .. .. 279 
Arthropoda. 
«• Insecta. 
Donisthorpe, H. — Mimicry of Ants by other Arthropods .. 279 
Heller, K. M . — Bloving Flower-buds tenanted by Apion 279 
Cameron, A. E . — Canadian Black Fly of Cattle 280 
Roubaud, E. — Life-history of Flies 280 
Urich, F. W., & others — Dipterous Bat-parasite and a New Chalcid bred from it 280 
Herrick, C. A ' — Sarcophagid Parasite of Field Cricket . . 280 
Dodds, G. S . — Adaptations of May-fly Nymphs to Swift Streams 281 
Marchal, Paul — Metamorphosis of Coccids 281 
Handschin, E . — Swiss Onychiurime 281 
Aiyar, T. Y. Bamakrishna — Natural Enemy of the Castor Semilooper 281 
Peile, H. D . — Butterflies of Mesopotamia 281 
Uvarov, B. P. — Alpine Orthoptera from Central Asia 282 
Sinton, J. A . — Myiasis in India and Persia 282 
Christophers, S. R., & F. W. Cragg — “Penis” of the Bed-bug (Cimex lectularius ) 282 
