CONTENTS. 



Tkansactions ok tiik Socibty — 



XI. A KkVISION of the GkNUS AuLISCUS f]ltHB, AND OF POMK 



AM-iKD Gen'kua. By John Hattray, M,A., B.Sc, F.K.S. 



(riatcs XIL-XVI.) .SGI 



XII.— XOTE ON THE LAIKiE SlZE OF THE SPICULES OF AoiS ORIKN- 



TALis. By F. Jeffrey Bcai, M. A., Sec. 11.M.S '.HI 



SUMMARY OF CUHRENT RESEARCHES. 



ZOOLOGY. 

 A. VERTEBHATA :— Embryology, Histologry, and Oeneral. 

 a. EmbryolOKy. 



ViRCUuw, H. — Physics of the Yolk 02:? 



KoLx, W. — Emhri/ouic Axis i)S,i 



Saxkelice, F. — Sperm itiigtnefis of Vertehrates 1(2'! 



l'm:>iA>.T, A.— Spermatogenfisig of Jtijitilca l'2l 



't>WE\\OTH\yi,'ii.~Fn(e of ilie Blastopore in liana temporaria 92.) 



Makshall, A. MiLNEs. — Development of the Fro'j .... .. 92;") 



Clauke, S. F. — E(j(js of Alligator Itiei us '.'2.") 



Raffaele, F. — Egfjs and Larvx of Teleosteans 925 



Weismann, A. — ReredUij 920 



KiiAWKiXE. M. W. — Principle of Heredifij and the Latcs of Mechanici applied 



to the Morphology of Sol tary Cells 92'i 



Thomson, J. A. — Action of the Environment 927 



Morgan, C. Lloyd. — Elimination and Selection 927 



0. Histologry. 



CiANci, C, & G. Angiolella. — Structure of Eed Blood-corpuscles 928 



Kabl-Rcckhahd, H. — Peculiar Fat-cells 928 



Waldeyer, W. — Karyohinesis in its Relation to Fertilization 928 



MiXGAZZixi, P. — Reticulum of Musde-Jibre • 928 



Schneider, A. — Sarcolemma .. .. 928 



RouDE, E. — Nervous System of Amphioxus 925 



B. INVERTEBRATA. 



Chatin, J. — Myelocytes of Invertebrates 929 



Dubois, R. — Role of Symbiosis in Luminous Marine Animals 9 .'9 



Zachabias, 0. — Distribution by Birds '.30 



Mollusca. 

 a. Cephalopoda. 



GjoxsTic Cephalopoda 9.30 



Watase, S. — Germinal Layers in Ci'phalopods {''iV 



Jatta, (t. — Olfactory Ganglia of Cephalopods 931 



Weiss, F. E. — Some Oigopsid Cuttle-fishes 931 



Lacrie, M. — Organ of Ver rill in Loligo 932 



Griffiths, A. B. — Salivary Glands of Sepia officinalis and Patella vulgata .. .. 932 



y. Gastropoda- 



PR^VAvrr, A.— Spermatogenesis of Gastropods .. 932 



I'elseneeb, p. — Classification of Gastropoda by the Characters of the Nervous 



System 933 



(i ARNAULT, P. — Structure and Development of Egg in Chitoni die 9S3 



Plate, L. — Organization of Dentalium 933 



S. Liamellibranchiata. 



Blancharp, B..— Structure of Muscles of Lamellibranehiat a 935 



Reichel, L. — Formation of Byssus 935 



Moliuscoida. 

 $. Bryozoa- 



JuLLiEN, J. — Movements of Polypides in ZooRcia of Bryozoa 93g 



Vigelius, W. J. — Ontogeny of Marine Bryozoa 93g 



Julmen, J. — Cristutella mucedo 936 



JoyEVX-hAFFZiE, J.— Delagia Chxtopteri q^q 



Braem, F. — Fresh-water Bryozoa 937 



