CONTENTS. 



Tbansaotions op thk Society — pag« 



I.-^The Apparatus fob diffebentiatinq the bkxes in Bees and 

 Wasps. An Anatomical Investigation into the Stuuotdbe 



OF THE EeCEPTACULUM SeMINIS AND ADJACENT PARTS. By 



Frank R. Cheshire, F.R.M.S. (Plates I. and II.) 1 



II.— On the Occurrence of Variations in the Development 

 of a Saccharomyces. By G. F. Dowdeswell, M.A., F.L.S., 



F.R.M.S., &c 16 



III. — Notes on the Life-Histories of some of the little-known 

 TYuoGLYrniDiE. By A. D. Michael, F.L.S., F.R.M.S., &c. 



(Plate III.) 19 



STJMMAHY OF CURBENT RESEARCHES. 



Zoology. 



Cald'WelLjW. H., W. Haacke, & T. Gill. — Oviparous Reproduction in the Monotremee 33 



„ „ Embryonic Membranes of Marsupiah 34 



Heiimann, L., c& a. v. Gendre. — Electromotive Function of the FowVe Egg .. .. 34 



Brook, G. — Development of the Lesser Weever-Fish 34 



MiNOT, 0. S. — Vesiculx seminales of Guinea-pigs 35 



LwoFF, W. — llistohgy of Hairs, Setse, Spines, and Feathers 85 



Camebano, L. — Distribution of Colour in the Animal Kingdom 37 



Grabek, V. — Sense of Colour and of Brightness in Animals 38 



Hunt, A. R. — Influence of Wave-currents on Fauna of SJmUow Seas >. 38 



Clavs' (C.) ElemenUtry Text-booh of Zoology 38 



Cakrieee, J. — Eyes of some Invertebrata 39 



Hogg, J. — Indestructible Infusorial Life 39 



Leidy, J. — Organisms in Ice 40 



GiROD, P. — Integument of Cephalopods 40 



GviV:^KCiiEVi,'ii..— Retina of Cephalopoda 41 



Paneth, J. — Histology of Pteropods and Heteropods 42 



Haddon, A. C. — Generative and Urinary Ducts in some Chitons] 42 



'\VECfiiAJfi'S,'H..— Natural History of Haliotis 43 



Bekgh, R. — ^ Challenger' Nudibranchs 43 



Ehbenbaum, E. — Structure and Formation of the Shell of LameUibranchs .. .. 44 



Sabatieb, A. — Follicular and Granular Cdls of Tunicaies 44 



RocLE, M. — Two Neio Species of Simple Ascidians 45 



Lankester, E. R.^i?fto6rfopfeMra 46 



Potts, E. — New Species of FaludiceUa 47 



Busk, G. — '■ Challenger^ Poly zoa 47 



ScHLLGiN, M. A. — Argiope Kouxilevshii 49 



Chatin, J. — Appendages of tlie Jaw of Mandibulate Insects 50 



Radoszkow'Ski, O. — Copviatory Apparatus of Male Bombu* 50 



Kaiser, W. — tju/minosity of the Glowiconn 50 



Cholodkovsky, N. — Testes of Lepidoptera 51 



„ „ Malpighian Vessels of Lepidoptera 51 



Covekdale, G. — Action of Ammonia upon Lepidopterous Pigments .. 52 



Osten-Sacken, C. R. — Comparative Chxtotazy 52 



"WiLLiSTON, S. W. — Edible Dipterous Larvse from Alkaline Lahea 53 



Patten, W. — Development of Phryganids 53 



"Witlaczil, E. — Development of Aphides , 53 



Kennel, J. VON. — Development of Peripatus 56 



MacLeod, J. — Structure of the Fore-gut of Arachnida 56 



Dahl, F. — Organs of Sense in Spiders , 58 



MAcLJiOD, J. — Coxal Gland in the Phalangida 58 



„ „ Hermaphroditism of the Male of Trombidium 58 



Plateau, F. — Absolute Force of the Muscles of Invertebrates 58 



Andrews, E. A. — Anatomy of the Spider Crab ,. 60 



Glaus, C. — Circulation of S'-Mzopoda and Decapoda 60 



Frenzel, J. — Enteric Glands in the Crustacea 61 



HoEK, P. P. C. — ^ Challenger^ Cirripedia 61 



Fbaipont, J. — Nercous System of Archiannelides 62 



Obley, L. — Respiration of the Serpulacex in Relation to their Tegumentary 



Pigments 64 



ViGuiEB, C. — Loioer Animals of the Bay of Algiers 65 



Manson, P, — Metamorphosis of Filaria sanguinis hominis in the Mosquito .. ,. 65 



Plate, L. — Structure of Rotatoria 65 



'tivXfiM, i .—Strwlure and Development of Mijzostoma 66 



