CONTENTS. 



Transactions of the SooiET-y — pac» 



I. — Observations on the Special iNTERNAii Anatomy of Uropoda 

 Krameri. By Albert D. Michael, F.L.S., P.Z.S., F.K.M.S., 

 &c. (Plate I.) 1 



II. — List of Desmids from Massachusetts, U.S.A. By Wm. West, 

 F.L.S., Lecturer on Botany and Materia Mediea at the 

 Bradford Technical College. (Plates II. and III.) .. .. 16 



III. — Keprodtjotion and Multiplication of Diatoms. By the Abb^ 



Count F. Castracane, Hon. F.K.M.S 22 



SUMMARY OF CURRENT RESEARCHES. 



ZOOLOGY. 

 A. VERTEBRATA :— Embryology, Histology, and General, 

 a. Embryology. 



Quincke, G. — Movements of Proto^jlasm .. .. 28 



Masius, J. — Placenta of Babbit 28 



GiACOMiNi, C- — Neurenteric Canal in the Babbit . . . . 29 



EiMEB, G. H. T. — Markings of Mammals 30 



Lucas, A- H. S.— Colour of Birds' Eggs .. .• •• 30 



ScHULTZB, O. — Development of Germinal Layers and Notochord in Bana-fusca . . 30 

 Eeinhard, W. — Development of Germinal Layers, Notochord, and Mid-gut in 



Cyprinoids 31 



EiMEB, G. H. T. — Origin of Species 31 



GuLiCK, J. T. — Divergent Evolution through Cumulative Segregation 33 



NussBAUM, M. — Heredity .. .. 34 



Amans, p. C. — Organs of Aquatic Locomotion 35 



M'CoY, F. M. — Zoology of Victoria . . .. .. 35 



p. Histologry. 



EoLLET, A. — Structure of Muscle 35 



Ballowitz, E. — Structure of Spermatozoa .. .. 36 



LuKJANOW, S. M. — Club-shaped Nucleoli .. .. 36 



EoHDE, E. — Nervous System of Amphioxus 86 



B. INVERTEBRATA. 



Mollusca. 



y. Gastropoda. 



^Kalide, G. — Eyes of Gastropods and of Pecten 88 



S. Lamellibranchiata^ 



Dubois, E. — Influence of Light .. .. 89 



Maoalpine, D. — Movements of Detached Gills 40 



M'Intosh, W. C. — Development of Mytilus edulis .. ..^ .. .. 40 



MoUuscoida. 

 o. Tunicata. 



IiIaubicb, C. — Monograph of Fragaroides aurantiacum .. .. .. .. .. .. 40 



JoLiET, L. — Structure of Pyrosoma .. .. 46 



Alternation of Generations in Salpa and Pyrosoma .. .. 47 



