( 2 ) 



JOUENAL 



OF THE 



EOYAL MICEOSCOPICAL SOCIETY. 



VOL. III. No. 6. 



CONTENTS. 



TbANSAOTIONS op the SoOIBTT — PAOB 



XXIV. On some Structural Features op Eohinostrephus molare, 



Parabalenia gratiosa, and Stomopneustes variolaris. 



By Charles Stewart, M.K.C.S., Sec. E.M.S. (Plate XX.) 909 



XXV. On the Diatomaoe^ in the Llyn Arbnig Bach Deposit. 



By Henry Stolterfoth, M.D 913 



XXVI. On a New Method op Testing an Object-glass used as a 



Simultaneous Condensing Illuminator op brilliantly 

 reflecting Objects such as minute Particles op Quick- 

 silver. By G. W. Royston-Pigott, M.A., M.D. Cantab., 

 F.R.S., &c. .. 916 



Record op Current Researches relating to Invertebrata, 



Crtptogamia, Microscopy, &c. .. .. .. .. 918 



Zoology. 



Impregnation of file Animal Ovum 918 



Influence of Light on the Development of Animals 918 



Origin of the Nervous System 919 



Terminations of Nerves in the Epidermis 922 



Minute Structure of Smooth Muscular Fibres . . .. _ 922 



Changes which Starch undergoes in the Animal Organism 923 



Deep-toater Fauna of the Swiss Lakes 924 



Dredgings in the Bay of Biscay 92i 



Deep Dredgings in the Lake of Tiberias 925 



Fresh-water Microscopic Organisms 926 



Excretory System of the Cephalopoda 926 



Influence of Acids and Alkalies on CephaJopods 929 



'^ Liver" of the Gastropoda 929 



Striated Muscles in the Monomyarian Acephalous Mollusca 9:^0 



Green Colour of Oysters 931 



Neomenia gorgonophilus 932 



Australian Polyzoa 933 



Fossil CatenicellcC from the (Australian') Miocene • . 933 



Recent arid Fossil Species of Australian Selenariadx 934 



Undefined Faculty in Insects 934 



Nervous System of Oryctes nasicomis 935 



Activity of Bees 937 



Scent- organs of the Male Privet Hawkmoth 938 



Morphology of the Suspensory Organs of Chrysalids 939 



Preservation of the Chrysalis from Cold 939 



Wing-muscles of Insects 940 



Salivary Glands of the Odonata 941 



Mode of Bespiration in the Larvse of the Genus Euphoea (Libellulidx) .. 941 



Poduridx from Switzerland 942 



Segments of the Geophilidx 943 



Poison-organs of the Spiders 943 



