Vlll CONTENTS. 



PAGE 



Ba^liss.W.M.— Protoplasm and Cell Contents .. .. 234 



» „ Nature and Permeability of the Cell Membrane 234 



Legrasd, 'Lovis— Theory of Specifie Plasma 235 



Lewis, Warren H. — Centriole and Centrosphere in Degenerating Fibroblasts .. 236 



'Dersohav,M.\.— Passage of Solids from Nucleus to Cytoplasm 236 



ScHREmER, K. E.— Minute Structure of Hagfish-skin 236 



FoRTmR,PAVL— New Theory of Symhions 236 



M.vmos,I. P.— Continuity of Cells and Amitotic Karyokinesis 237 



Danchakofp, Vera— Properties of Mesenchyme 237 



Beck, Clavvk S.— Distribution of Clasmatocytes 237 



YAiiCE, PL. W. Structure of Clasmatocytes 237 



NicHOLLS, George E.—i?emwe)-'s i^/6re 238 



FhATBER, Mary TfRVSiLhA— Blood Supply of Areas of Langerhans 238 



JoRDAti^H.E.— Intercalated Discs in Striped Muscle 238 



MoOBiE, Roy L.— Antiquity of Bone Structure 238 



A.SA\,TAKESBiRO—Mimite Structure of Membranous Labyrinth of Tadpoles .. .. 334 

 Lewis, Margaret Reed— Development <f Cross-striationsln Heart Muscle of Chick 



Embryo 335 



AhEXAyjyRE, Albert & Mary— Ultra-microscopic Particles 335 



Carter, J. TuoRNTOi^— Ena7nel Organ of Hake 335 



BvifTSMAi;, A. G.— Growth of Fish Scales 336 



HvTTON, J. Arthur— Scale-reading in Salmon 336 



Lynch, Yernon— Functions of N'ucleus 337 



Lewis, Warren H.—Degeneration of Fibroblasts of Chick Embryos in Cultures .. 337 



WiTTE, LvGiLhE— Development of Heart-muscle of Pig 338 



Gley,E.— Hemolytic Action of Blood of Young Eels 338 



Zilva, S. S., & F. M. Wells — Changes in the Teeth of the Guinea-Pig produced 



by Scorbutic Diet ' 338 



c. General. 



MoNARD, A. — Deep-water Fauna of Lake Neuchatel 32 



MvlIjEr,R. 'V.— Fauna of Eichener Lake 32 



Lo'SGhEY,\V.li.— Colours of Reef -fishes 33 



Shelford, V. E. — Reaction of Fishes to H-ions 33 



NoRDQvisT, O. — Are there Varieties of Eel ? 33 



Chapman, Royal Norton — Pehic Structure and Burrowing Habits 33 



Osborne, W. A. — Aqueous Humour 133 



Collins, H. II. — Moult and Regeneration of Pelage in Deer-mice 133 



Whiting, P. W., & Helen Dean King — Neio MendeUan Variety of Norway Rat 133 



Forbes, S. A., & R. E. Richardson — Changes in Life-conditions in Illinois River 134 



Scott, A. — Monthly Occurrence of Pelagic Eggs in Port Erin Bay in 1^18 .. .. 134 



Herdman, \\'. A., & others — Intensive Study of Isle of Man Plankton 134 



Krogh, A., & Isabella Leitcu — Respiration in Fishes 135 



BIayer, Alfred Goldsborough — Non-existence of Nervous Shell-shock in Fishes 



and Marine Invertebrates .. 239 



Larson, John A. — Functional Correlation of Hypophysis and Tliyroid 239 



Rochon-Davigneaud, A. — Corneal I'rotection in Crawling Animals 239 



Mayer, Alfred Goldsborough — Rate of Nerve-coiduction in Sea-water .. .. 240 



PoLiMANTi, O. — Colour-sense in Fishes 240 



White, Gertrude Marean — Colour-discrimination in Sticklebacks and Mud- 

 minnows 240 



