720 
INDEX. 
Torrey, H. B., Monogenesis in Metridium, 
164 
Tower, W. L., Loss of Ectoderm in Hydra 
viridis , 493 
Toxins, Passage of, from Foe! us to Mother, 
150 
Tracheal Elements, Growth, 171 
Trachoma, Bacteriology, 71 
Tradescantia, Anatomy, 406 
Trama radicis , Life-history, 594 
Transpiration, 300 
— in the Tropics and in Central Europe, 
179 
Tranzschel, W., New Genera of Fungi, 516 
Trap-door Spiders, British, 676 
Traumatropic Movements of the Nucleus 
and of Protoplasm, 181 
Treasurer’s Account for 1898, 117 
Trematodes in Fresh-water Mussels, 284 
— New or Bare, 602 
Trichomes of Gesneracese, 503 1 
Trichomonas intestinalis Leuckart, 289 
Trichophyton, Systematic Position, 520 
Trimen, Roland, Seasonal Dimorphism in 
Lepidoptera, 388 
Trochosphsera solstitialis , 162, 247 
Tropical Fungi, 63 
Tropidocerca and Hystrichis, 488 
Tropism and InstincT in Insects, 592 
Trout, Development, 571 
Trow, A. H., Biology and Cytology of 
Achlya, 515 
True, R. H., Physiological Effect of Plas- 
molysing Agents, 183 
— Sporophyte of Funaria and Mnium, 511 J 
Tschirch, A., Conducting Tissue of Vanilla- 
Fruit, 501 
Tsetse Fly Disease, Organism, 608 
Tsiklinsky, — ., Thermophilous Microbes, 
66 
Tsujitani, J., Cover-glass Preparations of 
Amoebse, 102 
— Pure Cultures of Amoebae, 99 
Tswett, M., Periplasmic Membrane, 498 
Tuber, Fertilisation, 632 
Tubercle Bacilli, New Stain for, 236 
Presence in Margarin, 638 
Thermal Death-point, 427 
— Bacillus, Bacillus having the Tinctorial 
and Morphological Characters of, 72 
— Human and Avian, Leprosy, and 
Smegma Bacilli, Staining Method 
for Differentiating, 455 
Tubercles of the Uvularieae, 408 
Tuberculin. Composition and Nature, 635 
Tuberculous Serum Reaction, Technique, 
103 
Tubeuf, C. von, Lenticels, 406 
Tubifex, Regeneration, 281 
Tunicata. See Contents, xi 
Tunicate Colony, Life of, 26 
Turbellarians, New, 38, 395 
Turnbull, R., Apodya lactea , 631 
Turner, E. R., Photomicrographs in Natu- 
ral Colours, 676 
Tyler, A. A., Nature and Origin of Sti- 
pules, 174 
Type Slides for Opaque Objects with Re- 
movable Covers, Method of Making, 351 
Typhoid Bacilli, from the Rose-coloured 
Spots, Cultivation, 659 
— Bacillus, Growth in the Soil, 431 
Simple Method for Detecting, 348 
Tyi»hoid-like Bacilli, Isolated from Thames 
Mud, 69 
U. 
Ule, E., Cleistogamous Flowers of Brome- 
liaceae, 298 
— Cross-Pollination, 298 
— Epiphytes upon Epiphytes, 302 
Ulmacese, Phylogeny, 406 
Ulmus, Fertilisation, 177 
Ulpiani, C., Reducing Action of Denitri- 
fying Bacteria, 523 
Ulvella americana, 419 
Unicellular Colonial Algse, 630 
Unna-Tanzer Method for Staining Elastic 
Fibres, Modification, 455 
Unstriped Muscle, Structure, 472 
Urecli, Friedr., Colour-variation in Vanessa 
io and urticas , 277 
Uredinese, 66 
— Adaptation to different Host-Plants, 
632 
— Germinating Power of the Winter- 
Spores, 190 
— Modification of Characters, 516 
— New Genera, 66 
Uropyxis, 517 
Uvulariem, Tubercles, 408 
V. 
Vaccinating Properties of Mushroom-juice 
against Venom, 193 
Valle'e, H., Effect of Bile on Rabies, 525 
Van Erinengem’s Method for Staining 
Flagella, Modification of, 235 
Vaney, L., New Cercaria from Snail, 396 
Vanillse, Anatomical Structure of the 
Leafless, 618 
Variation in Butterflies, 593 
— in Desmids, 629 
— in Distoma, 284 
— in Fishes, 273 
— in Teleutospores, 66 
— Inheritance in the Corolla of Veronica 
Buxbaumii , 511 
— versus Heredity, 274 
Vasa efferentia, Origin, in Tortoises, 380 
Vascular and Excretory Systems of Sipun- 
culus, 393 
