802 



INDEX. 



Selachia, Head Ganglia and Sensory Line, 



165 

 Selachians, Eye, 295, 662 

 Selaginella, Chloroplast, 188 

 Sellards, E. H., Permian Odonata, 667 

 Seminal Fluid, Toxic Properties, 283 



— Vesicle-duct of Queen Bee, 21 

 Semozay, — ., The Quenching of Steel, 



114 



Semper's Larva, New Species from Gala- 

 pagos Islands, 448 



Senile Degeneration, Alleged, in In- 

 fusorians, 37 



in Protozoa, 37 



Sense-organ in Schizopod, 25 



— New, on Head of Corethra Larvae, 438 

 Sense-organs, Antennal, in Diptera, 666 



— of Insects, 172 



Sensory -organs on Wings, 302 



Septa of Rugosa, 677 



Sergent, — ., Trypanosome of El-debab, 38 



Sesamoid Bone, Development, 537 



Sesamum orientale, Bacterial Disease, 593 



Setchell, W. A., Constantinea, 694 



Seurat, L. G., Pearl-producing Cestode, 



312 

 Sex, Chromosomes in Relation to Deter- 

 mination of, 5 



— Determination and Polyembryony, 435 

 Sex in Daplmids, Determination, 176 

 Sex Production, New Theory, 423 



— Structures in Marsupials, Development, 



537 

 Sex-cells, Histology, 541 



— of Chrysemys, Origin, 650 

 Sex-glands, Accessory, in Insectivora and 



Rodents, 7 

 Sex-organs of Cephalopods, 547 

 Sexton, A. H., Corrosion of Condenser 



Tubes. 246 

 Sexual Differences of Chromosome Groups, 



424 



— Dimorphism in Aglaophenia, 556 



— Organs and Development of Tapeworm, 



444 

 of New Polyclad Genus, 30 



— Reproduction in iEolosoma, 443 



— Selection, 424 

 Sexuality of Ascomycetes, 324 



— of Spores in Dioicous Mosses, 335 



— of Uredinese, 324 



Sharks, Membranous Labyrinth, 432 

 Shear, C. L., and others, Uredinepe, 585 

 Sheep, Abnormal Hoofs, 659 



— Development of External Genitals, 163 

 Shepherd, E. S., Aluminium-Zinc Alloys, 



517 



— Tensile Strength of Copper-Tin Alloys, 



634 

 Sheurer, C, Cell Communications between 



Blastomeres, 539 

 Shimer, H. W., Old Age in Brachiopods, 



315 



Shimmer, H. W., Peculiar Variation of 



Terebratula transversa, 179 

 Siedenlopf, H„, Ultraniicmscopical Investi- 

 gations upon the Colours of Rock Salt, 



368 

 Siedlecki, M„ Life-history of Spirochxta 



pallida, 683 

 Siegel, — ..Demonstrating the Parasites of 



Smallpox, 110 

 Siegel, G., Demonstrating Cytoryctes luis, 



381 

 Siegel, J., Parasite of Acute Exanthema, 



450 

 Silfvenius, A. J., Fn sh-water Algse from 



Finland, 576 

 Silica, Function in Nutrition of Cereals, 



455 

 Silk-moth, Artificial Parthenogenesis in 



Ova, 301 

 Silk-worm Crosses, Mendel's Law applied, 



437 

 Sillem, C, Monograph on British Wood- 

 lice, 306 

 Silver Impregnation Method, part played 



by Sodium-chloride, 624 

 Silvestri, F., Arachnological Notes, 24 



— Development of Ageniaspis fuscicollie, 



439 



— Life-history of Litomastix truncatellus, 



300 



— Notes on Machilidae, 667 



— Polyembryony in a Hymenopterous 



Parasite, 19 

 Simond. P. L., Stegomyia fasciata and 

 Yellow Fever. 438 



— Studying Yellow Fever, 51 1 

 Simons, E. B., Collecting Material for 



Study of Sargassum filipendula, 376 



— Sargassum filipendula, 340 

 Simpson, J. J., Structure of Isis hippuris, 



556 

 Sinclair, F. G., Structure of Platydesmidse, 



440 

 Siplionophore Colony, Interpretation of 



and Ontogeny, 317 

 Siphostoma jloridx, Studying Segmenta- 

 tion, 615 

 Sipunculidse, Embryology and Affinities, 



670 

 Sipunculus, Polian Tubes, 28 

 Sipunculus nudus. Blood-vessels, 310 

 Siredon pisciformis. Demonstrating Struc- 

 ture of Erythrocytes, 622, 65H 



Erythrocytes, 656 



Sitowski, L„ Digestion in Caterpillars, 21 

 Sitsen, A. E.. Aceton-Paraffin Imbedding 



Method, 623 

 Sjoval, E., Histology of Sex-cells, 541 

 Skeleton, Limb, Adaptive Modifications, 

 657 



— of Musk Duck, 543 



— Teleostean, Morphology, 661 

 Skin, Action of Radium Rays on, 169 



