INDEX. 



779 



Ultra-Microscopical Particles, Apparatus 

 for Examination, 702 



Simple Method for the Observa- 

 tion, 362 



— -Violet Light, Method of Obtaining 



Monochromatic, 392 

 Rays, Filtration through a Selection 



of Jena Optical Glass, 363 

 Transparency, New Kinds of Glass 



of Increased, 464 

 Umbrids or Mud-Minnows, 642 

 Underwood, L. M., Ferns of the Philip- 

 pines, 202 



— Linnseus's System of Ferns, 81 



Unna, P. G., New Method of Staining the 

 Epithelial Fibres and the Membrane of 

 Prickle Cells, 593 



Urediuese, 687 



— American, 221, 565 



— Fertilisation, Alternation of Genera- 



tions, and General Cytology, 221, 687 



— Mycoplasma, 565 



— New Species, 443 



— Notes, 343 

 Uredinopsis, 343 



Ureter, Constrictions and Dilatations, 639 

 Uric Acid Bacterium, 99 

 Urodela, Abnormalities, 517 



— Visceral Arches, 510 



Urodele, Arboreal, Autodax lugubris, 



Habits, 174 

 Ustilago tragopogi-pratensis, Copulation in 

 Conidia, 689 



— violacea, 564 



Vacuum Microscope, 361 



Vaillant, L., Mitsukurina Owstoni, 643 



Vanessa, Red and Yellow Pigment, 59 



Van Gieson Method, Modification, 592 



Vanha, J. J., Disease of Potato, 564 



Vanilla, Mycorhiza, 425 



Variation Notes, 516 



— Racial, 198 



Vascular Cryptogams, Development, 322 



— System of the Rhizome and Leaf-trace 



of Pteris Aquilina and P. Incisa, 201 

 Vast, A., Culture of Oospora destructor, 442 

 Vegetable Pathology, 226, 563 



— Tissue, Triple Staining, 376 

 Vegetation, Forest, in Southern Switzer- 

 land, 670 



Vegetative Form of Yellow Rust, 95 

 Veins of the Liver, Development in Rabbit 

 and Sheep, 399 



— Segmental, in Amphioxus, 522 

 Venation, Genealogical Study of Dragon- 

 fly Wing, 180 



Vertebrate Animals, Evolution in Time, 



137 

 Vertebrates, Maturation Divisions, 508 

 Vertical Illuminator, on the, 165, 257 



Vezey, J. J., 126, 135, 488, 724 



Viala, P., Anthracnose of the Vine, 563 



— Phthiriosis of the Vine, 343 



— Vegetable Pathology, 226, 563 

 Vigier, P., Accommodation-apparatus in 



Compound Eyes, 525 



— Muscular Fibres of the Molluscan Heart, 



646 

 Vigouroux, — ., Contributions to the Study 



of Alloys of Aluminium and Silicon, 125 

 Viguier, C, Influence of Carbon Dioxide 



on Ova of Echinoderms, 188 

 Viguier, R., Anatomy of Seedlings of 



Labiatse, 192 

 Villagio, — ., Preserving Insects, 589 

 Vine, Anthracnose, 563 



— Phthiriosis, 343 



Violet Flower, Variation, 540 



Vipers, Natural Immunity, 641 



Vire, A., Influence of Light and Darkness, 

 297 



Visceral Arches of Urodela, 510 



Vision, Microscopical, Theories of: a Vin- 

 dication of the Abbe Theorv, 610, 728 



"Vital Staining," Is there a? 375 



of Coretltra plumicomis, 376 



Vitreous Humour, Origin, 294 



— Silica, Optical Properties, 363 

 Viviparity and Parasitism, 513 



Volgt, M., Rotatoria and Gastrotricha of 

 Ploen, 419 



Volk, R., Plankton of the Elbe, 211 



Volkart, A., Parasitic Fungi, 345 



Volvocinese, Protozoa and Dicyeuiidae, 

 Reproductive Cycle, 312 



Volz, W., Sumatra Fishes, 56 



Lizards, 56 



Vorticella, Stalk, 660 



Vries, H. d., Fertilisation and Hybridisa- 

 tion, 290 



Vuillemin, P., Membrane of Zygospores, 

 439 



— Notes on Syncephalis, 93 



— Spinellus chalybeus and the Spinellus 



Group, 339 



— Sterigmatocystis versicolor, 442 



— Zygospore of Mucorini, 93 



W. 



Waddington, H. J., Exhibition of Speci- 

 mens of Marine Objects mounted by, 257 

 Wager, H., Function of the Nucleolus, 662 

 W T ainio, — ., Antarctic Lichens, 572 

 Walker, E. W. A., Effect of Certain Dyes 

 upon the Cultural Characters of the 

 Bacillus typhosus and some other Micro- 

 organisms, 573 

 Wallace, R. J., Grain in Photographic 



Plates, 711 

 Wallflower, Replacement of Stamens by 

 Carpels, 669 



