JAN 4 1897 
CONTENTS. 
TRANSACTIONS OF THE SOCIETY. 
PAGE 
IX. — On the Occurrence of Endocysts in the Genus Thalas- 
siosira. By Thomas Comber, F.B.M.S. (Plate XI.) .. 489 
SUMMARY OF CURRENT RESEARCHES . 
ZOOLOGY. 
VERTEBRATA. 
a. Embryology. 
E. W. M . — Mechanics of Development 492 
Driesch, Hs., & G. Wetzel — Experimental Embryology 493 
Schimkewitsch, W . — Fertilisation 493 
Sobotta, J . — Corpus luteum of Mouse 494 
Nusbaum, J . — Development of Hypophysis 494 
Brachet, A . — Development of Diaphragm and Liver in the Rabbit 495 
Jacoby, M . — Accessory Glands of the Thyroid Region 495 
Kingsbury, B. F . — Spermathecse and Fertilisation in American Urodela .. .. 495 
Bataillon, E . — Segmentation of Egg of Amphibia and Teleostei 495 
Eigenmann, C. H . — History of Sex-Cells in Cymatogaster 496 
Beard, J . — Transient Nervous System in Skate .. 496 
Dean, Bashford — Early Development of Ganoids 497 
Price, G. C . — Development of Bdellostoma 498 
Stricht, O. Van der — Egg of Amphioxus 498 
j8. Histology. 
Henneguy, F . — Morphology of the Cell 499 
Bawitz, B . — Studies on Cell-Division 499 
Ruckert, J . — Reducing Divisions 499 
Foot, Catherine — Yolk-Nucleus and Polar Rings 499 
Rabl, Hs . — Nuclei of Fat- Cells 500 
Schafer, E . — Photography of Histological Evidence 500 
y. General. 
Koehler, R. — Deep-Sea Dredgings in the Bay of Biscay • • 500 
Murray, John — General Conditions of Existence , and Distribution of Marine 
Organisms 501 
Ortmann, A. E. — Separation , and its Bearing on Zoo-Geography 502 
Dendy, A . — Cryptozoic Fauna of Australasia 503 
Hutton, F. W . — Distribution of Southern Faunae 504 
Driesch, Hans — The Machine-Theory of Life 504 
Masterman, A. T . — Physiological Interpretations of Structure 505 
Index to the Journal ( Zoology ) of the Linnean Society 506 
Tunicata. 
Korotneff, A . — Development of Salpa 506 
Willey, A . — Remarkable Ascidian 507 
INVERTEBRATA. 
Hassall, A. — Animal Parasites of Chickens , Turkeys , and Ducks 507 
Erlanger, R. von — Phenomena of Fertilisation 507 
