CONTENTS. 



TbANSAOTIOKS op the SoOIE-rV — pass 



VII. — Notices of New Pebitriohotts Infusoria from the Fbesh 

 Waters of the United States. By Dr. Alfred C. Stokes. 



(Plate X.) 477 



VIII. — Additional Note on the Foraminifeea of the London Clay 

 EXPOSED IN the Deainagb Works, Picoadilly, London, in 

 1885. (Plate XL) 483 



SUMMABT OF CUBBENT BESEABCHES. 



ZOOLOGY. 

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



o. Embryolo&y. 



MiNOT, C. S. — Uterus and Embryo . . .. 489 



Tafani, K.— Fecundation and Segmentation of Ova of Rata .. 490 



Cunningham, J. T. — Reproduction and Development of Teleostean Fishes . . . . 491 



)3. Histology. 



Feommann, 0. — Vital Processes in Living Cells 492 



MoEPUEGO, B. — New Formation of Cells 493 



Tangl, F. — Relation between Cell-body and Nucleus . . . . 493 



Falzacappa, E. — Nerve-cells in Birds 494 



Gage, S. H. — Form and Size of Red Blood-corpuscles of Adult and Larval 



Lampreys 494 



y. General. 



Stuhlmann, F. — Fresh-water Fauna of East Africa 494 



B. INVEETEBBATA. 



CuiNOT, L. — Lymphatic Glands of Cephalopods and Decapodous Crustacea ,. .. 495 



Mollusca. 



o. Cephalopoda. 



Beooes, H. — Structure of Siphon and Funnel of Nautilus Pompilius 495 



Beock, J. — So-called Organ of Verrill in Cephalopoda 496 



j8. Pteropoda. 



Pelseneeb, p. — Morphology of Spinous Sacs of Gymnosomatous Pteropoda . . . . 496 



y. Gastropoda. 



BoTJTAN, L. — Ventral Nervous Mass of Fissurella 496 



Perez, J. — Descent of Ova in Helix 497 



ScHALFEJEFF, P. — Anatomy of CHone Umacina 497 



Gabnault, p. — Reproductive Organs of Valvata piscinalis .. ,, ., .. .. 498 



S. Iiam.ellibrauch.iata. 



Mknegaux, a. — Morphology of Teredo 498 



Nevmayb, M. — Origin of Unionidse 498 



MoUuscoida. 



a. Tunicata. 



Davidofp, M. v. — Developmental History of Distaplia magnilarva 498 



