XIV CONTENTS. 



pa<ik 



Baker, F. C. — Mutation in Molluscs - 434 



Walter, H. E. — Behaviour of Pond Snail 547 



Petch, T. — Re-discovery of Umax tenellus in Britain 663 



Veneziani, A. — Hegeneration of Tentacular Nerve of Snail 663 



8. Liamellibranchiata. 



Faussek, V. — Parasitism of Anodonta Larvx 18 



RocHEBRUNE, A. T. de — Oysters of Senegambia 18 



Anthony, R. — Ligamentary Structures in Bivalves 18 



Pelseneer, Paul — Bivalve with tivo Mouths 299 



Hind, W. — Hinge-Plate in Aviculopecten semicostatus 299 



Allen, A. W. — Natural History of Margaritif era panasesse 434 



Lozinski, P. — Structure of the Heart in Bivalves 664 



Freidenfelt, T. — Minute Structure of Visceral Ganglion of Anodonta 664 



Boltzmann, Henriette — Pericardial Glands of Bivalves 664 



Arthropoda. 



Smethlage, E. — Muscle- Attachment and Origin in Arthropods 19 



Carpenter, G. H. — Segmentation and Phytogeny of Arthropods 664 



a. Insecta. 



Mafchal, P. — Poly-embryony in Parasitic Hymenoptera 19 



Silvestri, F. — Poly-embryony in a Hymenopterous Parasite 19 



Bengtsson, S. — Morphology of the Insect Head 19 



Wielowietski, Heinrich Ritter von — Structure of the Insect Ovary 20 



Wert, J. — Bees and Flowers 20 



Dreyling, L. — Wax-Glands of Bees 2> 



„ „ Wax-forming Orqans in Social Bees 20 



Bresslau, E. — Seminal Vesicle-duct of Queen Bee 21 



Enteman, W. E. — Coloration in Polistes 21 



Linden, Countess M. von — Experimental Alteration of the Colours of Lepidoptera 21 



Pieszczek, A. — Variability of Cobas Myrmidone 21 



Linden, Countess M. von — Cohuring Matter in Vanessa 21 



Sitowski, L. — Digestion in Caterpillars 21 



Ssilantjew, A. A.— Parthenogenesis in a Beetle 22 



Saling, Th. — Unfertilised Ova of Tenebrio Molitor 22 



Reitter, E. — Blind Bombardier-Beetle 22 



Casey, Thos. L. — Revision of American Psederini 22 



Blanchard, R. — Treatise on Culicidse 22 



Felt, E. P. — Studies on Culicidse 22 



Minchin, E. A. — Structure of the Tsetse- Fly 22 



Wesche, W. — Genibd Appendages of the Tsetse-Fly 23 



Schneider, J. — Dipterous Larvx from Deep Water in Lakes 23 



Thienemann, A. — Trichoptera Pupse 23 



Cockerell, T. D. A. — Scale-insect of Rose 23 



Graeffe, E. — Two New Cynipid Galls 23 



Flogel, J. H. L. — Monograph on Aphis ribis 23 



Tillyard, R. J. — Supposed Numerical Preponderance of Males in Odonata .. .. 24 



„ „ Dimorphism in Female of Ischnura heterosticta 24 



Ludwig, F. — Phosphorescent Collembola 24 



Seii.er, W. — Ocelli of Ephemer ids 171 



Stevens, N. M.— Germ- Cells of Aphides 171 



Fulmek, L. — Heart of Mallophaga 171 



Veneziani, A. — Malpighian Tubules 171 



Moore, J. E. S., & L. E. Robinson — Behaviour of Nucleolus in Spermatogenesis of 



Cockroach 172 



Gross, J. — Ovaries of Mallophaga and Pediculidx 172 



Rohler, E. — Sense Orqans of Insects 172 



Hill. E. G. — The Oil of Indian Mites 172 



Beklese, A. — Treatise on Insects 299 



Popoviui-Baznosanu, Andrei— Circulatory Syst em in Insects 299 



