Xii CONTENTS. 



B. — Invektebkata. 



PAGE 



EoEDEL, H. — Minimum Temperature consistent with Life Parti 52 



Delage, Y. — New Function for Invertebrate Otocysts „ 52 



MacMunn, C a. — Function of the Malpighian Tubes of Insects and Nephridium 



of Pulmonate Mollusca „ 52 



Imhof, O. E. — Pelagic Microzoa of the Baltic „ 52 



AsPER, Gr. — Microscopic Organisms in Fresh Water „ 53 



Schneider, R. — Amphibious Life in Rhizomorpha ,, 53 



Haller, B. — Dotted Substance of Leydig Part 2 214 



MacMtjnn, C. A. — Enterochlorophyll and Allied Pigments „ 214 



^j ,, Myohiematin and the Histohiematins „ 214 



Certes, A., & Garrigou — Micro-organisms in Tltermal Water „ 214 



PocTA, P. — Fossil Calcareous Elements of Alcyonaria and Holothurioida .. .. „ 215 



Barrois, J. — Singular Parasite on Firola Part 3 373 



Forel, H. — Pelagic Micro-organisms of Fresh-water Lakes „ 373 



Imhof, 0. E. — Microscopic Fauna of High Alpine Lakes „ 374 



NussBAUM, M. — Vitality of Encapsuled Organisms Part 4 568 



Varigny, a. de — Influence of Medium „ 568 



Delage, Y. — Otocysts as Organs of Locomotor Orientation Part 5 732 



Zachakias, O. — Pelagic and Littoral Fauna of North German Lakes .. .. „ 733 



Grobben, 0. — Pericardial Gland of Opisthobranchs and Annelids Part 6 939 



LuDWiG, H. — Singular Parasite on Firola „ 939 



Mollusca. 



Patten, W. — Eyes of Mollusca Parti 53 



Frenzel, J. — '■'■ Liver" of Mollusca „ 57 



Lacaze-Ddthiers, H. DE — Nervous System of Gastropoda ,, 57 



Bkock, J. — Development of Genital Apparatus of Stylommatophorous Puhnonata „ 58 



BorviER, E. L. — Nervous System of Ctenobranch Molluscs „ 60 



Sandford, E. — -Strength of Snails „ 60 



RouLE, L. — Histological Peculiarities of Lamellihranchs „ 60 



Dall, W. H. — Deep-sea Mollusca „ 61 



Frenzel, J. — Histology of the Mollusc Liver Part 2 215 



Bruce, A. T. — Early Development of Loligo „ 216 



HOTLE, W. E. — ^ Challenger^ Cephalopoda „ 216 



Pelseneer, p. — New Gymnosomatous Pteropod „ 217 



McMuRRiCH, J. P, — Embryology of Prosobranch Gasteropods „ 217 



BooviER, E. L. — Typical Nervous System of Prosobranchs „ 218 



Marion & A. Kowalevsky — Lepidomenia hystrix „ 218 



Watson, A. B., & DE FoLiN — ' Challenger ' Scaphopoda and Gastropoda . . .. „ 219 



Bergu, R. — ^ Challenger ' Marseniidas „ 219 



Haddon, H. G. — ^ Challenger^ Polyplacophora „ 219 



Thiele, J. — Mouth-lobes of LamelUbranchs „ 220 



BiJTSCHLi, O. — Morphology of Eye of Pectens „ 220 



Friele, H. — North Sea Mollusca „ 221 



Growth of the Molluscan Shell Part 3 374 



BouviER, E. L. — Nervous System in Tenioglossate Prosobranchs „ 374 



Gibson, R. J. H. — Anatomy of Patella vulgata „ 375 



G ARNAULT, P. — Concretionary Gland of Cyclostoma elegans „ 376 



OsBORN, H. L. — Osphradium of Crepidula ,, 376 



Binney, W. G. — Terrestrial Air-breathing Molluscs of the United States . . .. „ 376 



RiEFSTAHL, E. — Shells of Cephalopoda Part 4 569 



Wolff, G. — Renal Organs of Prosobranchs „ 569 



List, J. H. — Glands in Foot of Tethys fimbriata „ 569 



