CONTENTS. 
Transactions of the Society — 
PACK 
V. — On Certain Cystic Worms found in Butcher’s Meat, and 
in Equine Animals, which simulate the Appearance of 
Tuberculosis. By G. M. Giles, M.B., F.K.C.S., F.R.M.S., 
Surg.-Major I.M.S. (Plate IV.) 289 
YI. — Note on a Tapeworm from Echidna (Taenia Echidna sp. n.). 
By D’Arcy W. Thompson. (Plate Y.) 297 
YII. — Notices of some undescribed Infusoria from the Brackish 
Waters of the Eastern United States. By Alfred C. 
Stokes, M.D. (Plate Y.) 298 
SUMMARY OF CURRENT RESEARCHES. 
ZOOLOGY. 
A. VERTEBRATA : — Embryology, Histology, and General. 
a. Embryology. 
Lwoff, B . — Germinal Layers in Vertebrates 303 
Schulze, O . — Development of Mammary Glands 303 
Nathusius, W. v . — The Shell of a Hen’s Egg 304 
Stricht, O. van der — Cellular Islets at the Margin of the Blastoderm of the Chick . . 304 
Hasse, C . — Development of the Vertebral Column 304 
Stohr, Ph . — Development of Liver and Pancreas in Trout 304 
Piersoll, G. A . — Duration of Motion of Human Spermatozoa . . 304 
Lwoff, B . — Development of Ai phioxus 305 
Ryder, J. A . — Inheritance of Modifications 305 
Rath, O. vom — Inheritance of Mutilations 306 
Weismann, A . — The Germ-Plasm 306 
Nussbaum, M . — Beproduction and Heredity 307 
B. Histology. 
Strasburger, E.— Cell-division 307 
Butschli, O . — Imitation of Karyokinetic Figures 307 
Dogiel, A. S . — Structure of Nerve- Cells and their Processes 308 
Heidenhain, M. — Giant-Cells of the Medulla and their Central Corpuscles .. .. 308 
Rose, C. — Weil’s Basal Layer of Odontoblasts 308 
Apathy, St. — Contractile and Conducting Primitive Fibrils 308 
Butschli, O . — Structural Resemblance between Emulsions and Protoplasm . . . . 309 
y. General. 
Verworn, Max — Movement of Living Matter .. .. 310 
Ardissone, F . — The Living Organism 311 
Haeckel, E . — Plankton 311 
Biological Nomenclature 311 
B. INVERTEBRATA. 
Yung, E . — Influence of Light on Development of Animals 311 
Mollusca. 
y. Gastropoda. 
Cuenot, L . — Physiology of Pulmonata .. .. 312 
Simroth, H . — Pulmonata of Portugal and the Azores 312 
Erlanger, R. v . — Development of By thinia 313 
Hecht, E . — Some Means of Defence in Eolididse 313 
Heuscher, J . — Structure of Proneomenia 313 
S. Lamellibranchiata. 
Chatin, J . — Seat of Coloration in Green Oysters 314 
Schiedt, R. C . — Oysters from N. W. Coast of United States 314 
Molluscoida. 
a. Tunicata, 
Pizon, A . — Blastogenesis in Botryllidx 315 
Griffiths, A. B . — New Respiratory Globulin of Tunicates 316 
Da v idoff, M. V . — Canalis Neurenticus Anterior 316 
