876 
INDEX. 
Tooth and Bone, Microscopical Sections 
of, 528. 
Torsion, Heredity of, 210. 
Tortoises, Parasites of the Blood of, 731. 
Torula spongicola, 756. 
Trabut, L Monstrous Specimen of Taenia 
saginata, 44. 
, Strengthening of the Sexuality of a 
Hybrid, 629. 
Tracheal System, closed, in Insect Larvae, 
7J1. 
Tracheata, Signification of Vitelline Cells 
in, 586. 
Trametes radiciperda, 649. 
Transcaspia, Fauna of, 159. 
Transmitting Microscopic Objects, Method 
for, 120. 
Transpiration, 64, 631, 632. 
, Literature of, 361. 
Transpiration-current in Plants, 484. 
, Descending, 748. 
Transpiring Plants, Cause of the Move- 
ment of Water in, 632. 
Transplantation of Organs, 62. 
Trautzsch, H., Polynoida of Spitzbergen, 
325. 
Treasurer’s Account for 1889, 264. 
Trees, Comparative Structure of the Stem 
of, 621. 
, Temperature of, 65. 
Trelease, W., Myrmecophilous Plants, 486. 
Trematoda, Ectoparasitic, Position of Ex- 
cretory Pores in, 43. 
Tremutodes, Ectoparasitic, Skin of, 462. 
of Gills of Italian Fishes, 725. 
Trembley’s Experiments on Hydra, 342. 
Tremella Dulaciana, Parasites of, on 
Agaricus nebularis, 495. 
Trentepohlia, 490. 
Treub, M., Embryogeny of Lycopodiacese, 
213. 
Trichomes within Trichomes, 75. 
Trichophila, a new genus of Spliaeropsideae, 
367. 
Trichophyton tonsurans parasitic on Cer- 
vus elaphus, 495. 
Trimorphism of Scabiosa succisa, 483. 
Trochilium apiforme, Anatomy of, 594. 
Tschaplowitz, F., Conduction of Water, 
361. 
Ttchirch, A., Absorbing-organs of the 
Seeds of Scitamineae, 625. 
, Resin-producing Receptacles, 621. 
Tube-building Habits of Terebella littor- 
alis, 685. 
Tuher of Corydalis, 627. 
Tubercle Bacilli, Demonstrating, 252. 
Tubercles, 203. 
of Leguminosae, Symbiotic Organism 
of, 372. 
of Stachys tuberifera, 204. 
on the Roots of Leguminous Plants, 
357. 
Tuberculosis, 83. 
, Koch’s Remedy for, 768. 
, Virus of, in Milk, Butter, Whey, and 
Cheese, 377. 
Tubers, Change of Flowers to, 623. 
of Hydrocotyle americana, 60. 
Tubeuf, C. v., Parasitic F ungi, 644. 
, Parasitism of the Mistletoe, 360. 
Tubipora, Habits and Species of, 340. 
Turker, G. R., The number and distribu- 
tion of micro-organisms in the air of the 
Boston City Hospital, with some car- 
bonic acid determinations, 378. 
Tunicata. See Contents, xi. 
Turbellaria, Northern, 724. 
Turntable, Simple, 665. 
Turner, A., Trimorphism of Scabiosa suc- 
cisa, 483. 
, W., Cell-Theory, Past and Present, 
310. 
, — ., Placenta of Dugong, 574. 
Turpentine and other Substances, De- 
coloration of Osmized Fat by, 117. 
, Venetian, as a Mounting Medium, 
258. 
Titiscaniae, 577. 
Tyas, W. A., Hardening, Imbedding, Cut- 
ting, and Staining animal sections, and 
mounting the same, 415. 
Tvphlocybae, Parasitic Castration of, 31. 
Typhoid Bacillus, Cultivation of, in Sewer 
Water, 109. 
, Negative Indol-reaction as a 
test for, 657. 
U. 
Ugimyia-Larva, 171. 
Underwood, A. S., Staining with Chloride 
of Gold, 815. 
Unio, Tasmanian, Variability of, 23. 
United States, Terrestrial Air-breathing 
Molluscs of, 447. 
Urech, F., Diminution in Weight during 
Pupation, 450. 
Uredin ae, iEcidioform of, on two different 
hosts. 756. 
, Himalayan, 648. 
, Peridium and Spores of, 495. 
Uropoda, Variations of the Female Repro- 
ductive Organs in different species of, 
142. 
Urostyle, Nuclei of, 345. 
Ustilago Carbo, 754. 
V. 
Vacuoles in Algae, Formation of, 640. 
Vaginula, Some Species of, 21. 
Vail lard, — ., Streptococcus and Influenza, 
765. 
Vaizey, J. R., Alternation of Generations, 
750. 
