INDEX. 



1177 



Topffer, A,, Transitional Equisetum, 

 681. 



Topler's (A.) Illuminating Apparatus, 

 710. 



Torpedo, Early Developmental Stages 

 of, 977. 



Torsion, Heliotropic and Geotropic, 95. 



Townseud, F., Homology of the Floral 

 Envelopes in Graminese and Cypera- 

 ceae, 676. 



Trachinus vipera, Development of, 34. 



Trachsel-Crozet, 1111. 



Tracks of Insects resembling the Im- 

 pressions of Plants, 635. 



Tradescantia, Division of Cell-nucleus 

 in, 475. 



Trajano, Lago, Diatoms from, 103. 



Transactions of the Society. See Con- 

 tents, xliv*. 



Transparencies, Lantern, 866. 



Transpiration and Respiration of 

 Fungi, 104. 



, Protection of Leaves from exces- 

 sive, 1025. 



Transpiration-currents, 1032. 



Treasurer's Account for 1884, 373. 



Trees, Mechanical Injury to, by Cold, 

 1029. 



, Nutrition of, by means of under- 

 ground Fungi, 844, 



Trelease, W., Relations of Two 

 Cecidomyians to Fungi, 291. 



Trematoda, 1002. 



, Anatomy of, 460. 



Trematodes, Imbedding and Examin- 

 ing, 735. 



Treub, M., Embryo of Barringtonia, 

 271. 



, of Cycadese, 270. 



, Prothallium of Lycopodium, 



277. 



Trichia, Development of the Spo- 

 rangium of, 107. 



Trochobryum, a New Genus of Seli- 

 geriaceaj, 281, 841. 



Trocliosphere, Formation of, in Berpula, 

 240. 



Trombidium, Hermaphroditism of Male 

 of, 58. 



Trouessart, E. L., Acari inhabiting the 

 Quill of Feathers, 236. 



, Sarooptld*, 803. 



Trough, Hawkins's Observatory, 719. 



Trout, Flagellate Infusorian parasitic 

 on, 82. 



Truncatella, Respiration of, 986. 



Twiliirch, A., Chemical Reactions of 

 Chlorophyll, 264. 



, Chlorojihyll of Fucaceai, 282. 



— — , Mof^hanical TisHue-syHtom, 828. 



, Morphology of Chlorophyll- 



grains, 88, 475. 



Tschirch, Penetration of the Mechanical 

 Ring for the Transport of Food- 

 material, 479. 



• , Starch-meal, 265. 



Tuberacese, Cryptica, a New Genus of, 

 105. 



Tuberculosis, Etiology of, 851. 



Tunicata. See Contents, xii. 



Turbellaria, Development of, 648. 



, Fresh-water, of North America, 



648. 



Turbellarian, New, 248. 



Turbellarians, Deep-water, of Lakes, 

 1004. 



Turner, W. B., On some new and rare 

 Desmids. 933. 



, Staining Desmids, 742. 



Turntable, Brownell's, 350. 



, Microscopical, 166. 



"Twin" Simple Microscope, 862. 



Tyas, W. H., 928. 



TyroglyphidsB, Notes on the Life-His- 

 tories of some of the little-known, 19. 



Tyrothrix, Action of various Com- 

 pounds on, 510. 



Tyrrell, P., 534. 



U. 



Uljanin, B., Doliolum, 231. 



, Structure of Distaplia, 233. 



Ulmer, J., Microscope with Catgut 



Focusing Adjustment, 1057. 

 Umbelliferse, Oil-receptacles in the 



Fruit of, 89. 

 Unicellular Organisms, Immortality of, 



466. 

 " Universal Accessory," Bausch and 



Lomb Optical Company's, 713. 

 Urbanovics, F., Development of Cy- 

 clops, 641. 

 Uredinese, Life - history of certain 



British Heteroecismal, 288. 

 , Reproduction of the Hetercecious, 



503. 

 Uric Acid Crystals, Extraction of, 



from the Green Gland of Astacus 



fluviatilis, 805. 

 Urinary Deposits, Mounting, 365. 



Organs of Amphipoda, 640. 



Umatella gracilis, 439. 



Urodela, Preparing Brain of, 536. 



Uropneustic Apparatus of Helicinse, 



225. 

 Urtica dioica, Vegetative Organs of, 833. 

 Ustilagiiiea, New, 288. 



V. 



Van Brunt, C, 534, 729, 749, 928, 



nil. 



, Balsam of Tolu as a Medium 



for Mounting, 352. 



