Xll CONTENTS. 
TAGE 
Garstang, W . — Neio British Doris 511 
Kostanecki, K. v., & A. Wierzejski — Maturation and Fertilisation in Physa 
fontinalis 511 
Tonniges, C . — Origin of Mesoderm in Paludina 511 
Fujita, J . — Experiments on Molluscan Eggs 512 
Pilsbry, H. A., & E. G. Vanatta — Revision of North American Slugs 615 
Dall, W. H . — Insular Land Shell-Faunae 615 
5. Lamellibrancliiata. 
Boyce, R. W., & W. A. Herdman — Oysters and Typhoid 54 
Bernard, F . — New Lamellibranch Commensal with an Echinoderm 55 
Bruyne, C. de — Phagocytosis in Lamellibranchs 181 
Chatin, J . — Staining in the Oyster 512 
„ „ Macroblasts of Oysters 512 
Brachiopoda. 
Dall, W. H. — Deep-Sea Brachiopoda 401 
Bryozoa. 
Waters, A. W . — Interzcecial Communication in Flustridse, and Notes on Flustra 279 
Oka, Asajiro — “ Excretory Organ ” of Fresh-water Polyzoa 304 
Michael, E. M . — Remarks on Bryozoa •• 367 
Harmer, S. F . — Development of IJchenopora verrucaria 401 
Spencer, Baldwin — Tertiary Polyzoa of Victoria 402 
Gregory, J. W . — Catalogue of Fossil Bryozoa in the British Museum 513 
Arthropoda. 
a. Insecta. 
Weismann, A . — Seasonal Dimorphism of Butterflies 55 
Verson, E . — Development of Male Ducts in Silk-Motli 57 
Verhoeff, C . — Morphology of the Abdomen in Coleoptera 57 
Kluge, M. H. E . — Genital Organs of Male Wasp 57 
J anet, Ch . — History of a Wasp’s Nest 57 
Edgeworth, F. G . — Statistics of Wasps 58 
Emery, 0 . — The Genus Dorylus 58 
Wandollek, B . — Antennas of Diptera 58 
Meldola, R . — Speculative Method in Entomology 181 
Cuenot, L . — Physiology of the Orthoptera 182 
Holmgren, Emil — Branching of the Tracheae in the Spinning- Glands of Lepidop- 
terous Larvae 182 
Wasmann, E . — Ergatogynous Forms in Ants and their Explanation 183 
Janet, Ch . — Muscles of Hymenopter a 183 
Cholodkovsky, M . — New Species of Chermes 183 
Alessandrint, G . — Larva of Sarcophaga affinis in Man 184 
Nagel, Wilibald — Proteid-digesting Saliva in Insect Larvae .. 184 
Erlanger, R. yon — Accessory Nucleus ( Nebenkern ) in Spermatogenesis 184 
Verhoeff, C. — Wound-Healing in Carabus 184 
Plateau, F . — Effectiveness of a Net in excluding Insects 305 
Dixey, F. A . — Relation of the Mimetic to the Original Form 305 
Verson, E., & E. Bisson — Post-Embryonic Development of Vasa deferentia and 
Accessory Organs in Male of Bombyx mori 305 
Butler, A. G . — Synonymy of Huphina lanessa 306 
Ballowitz, E . — Double Spermatozoa of Dyticidae 306 
Bordas — Alimentary Canal of Forficulidae 306 
Cockerell, T. D. A . — The Genus Perdita 306 
Marchal, P . — Habits of Polistes 307 
Grobben, C. — Queen-Bee unable to lay Drone-Eggs 307 
Elliott, G. F. Scott — Flower-haunting Diptera 307 
Heymons, H . — Abdominal Appendages of Insects 402 
Scudder, S. H . — Fossil Butterflies 403 
Bath, W. H.— Origin of European Butterflies 403 
Bateson, W . — Colour Variation of a Beetle 403 
