INDEX 



THE 



< Theca ' of mosses, 671 

 Thecaphora, 868 

 Thecata, 868, 870 



zob'phytic stage of, 877 

 Thermo-regulator, Reichert's, 458 

 Thermostatic stage, Dallinger's, 344- 



346 



Thoma's (Jung) microtome, 461-469 



Thompson (J. Vaughan), on pentacrinoid 

 larva of Antedon, 901 ; on Cirripedia, 

 967 



Thomson (Wyville), on development of 

 Antedon, 903 



Thread-cells of Ciliata, 773 ; of Hydra, 

 864 ; of Zoantharia, 878, 879 ; of pla- 

 narians, 947 



' Thread-worm,' 944 



Threads of spiders' webs, 1015 



Thurammina papillata, 815 



Thwaites, on conjugation of Epithemia, 

 599 ; of Melosira, 560 



Thysanura, scales of, 977 



Ticks, 1008. See Acarina 



Tineidce, wings of, 999 



Tinoporus baculatus, 824 



Tipula, spiracle of, 976 ; eye of, 987 ; 

 antennae of, 988 



Tolles' binocular eye-piece, 101 ; his me- 

 chanical stage, 204; his immersion 

 objectives, 362, 364 ; his apertometer, 

 390 



Tomes (Charles), on teeth, 1025 



Tomopteris onisciformis, 952, 953 ; de- 

 velopment of, 954 



quadricornis, 954 



' Tongue' of Gastropoda. See Palate 



' Tortoiseshell butterfly,' eggs of, 1005 



Torula cerevisics, 645 



Total reflexion, 6, 7 



Tourmaline, pleochroism in, 1078 



Tow-net, 528 



Tow-nets of Challenger Expedition, 529 



note 

 Tracheae of insects, 994; of Acarina, 



1011 

 Trachei'des of ferns, 674 ; of conifers, 698, 



703 



Trachelomonas, 545 

 Tradescantia virginica, cyclosis in 



hairs of, 691 

 Tragulusjavanicus, red blood-corpuscle 



of, 1035 



Trematodes, 945 

 Triceratium, 588, 613 



as test for illumination, 415, 416 



favus, 593, 613 



fimbriatum, as test for medium 

 powers, 389 



Trichocysts of Ciliata, 773 



Trichoda lynceus, crawling of, 774 ; re- 

 production of, 780, 781 



Trichodina grandinella, a phase in de- 

 velopment of Vorticella, 780 



Trichogyne of Coleochcete, 575 



of Floridece, 632 ; in lichens, 650 

 Trichonymplia, 774 

 Trichophore of Floridea;, 632 



TING 



Trichophrya, a phase in development of 



Suctoria, 785 



Trigonia, prismatic layer in, 924 

 Triloculina, 802 

 Triple-backed objectives, 361 

 Triplet, Holland's, 37 

 Triplex front to objectives, 370 

 Tripoli stone, 617 

 Trochus zizyphinus, palate of, 931 

 Trombidiidce, 1008, 1009 ; legs of, 1010 ; 



hairs of, 1010 ; eyes of, 1011 ; tracheae of, 



1011 ; characters of, 1012 

 Trombidium, maxillae of, 1010 ; larvae of, 



1013 



holosericum, 1013 

 Trophi of Botifera, 788 

 Truncatulina rosea, colour of, 799 

 ' Tube-cells,' cements for, 442 

 Tube-length, English and Continental, 



158, 159 

 Tuberculosis, bacillus of, 661 ; methods of 



staining, 515, 516 



Tubifex rivulorum, gregarine of, 751 

 Tubipora, 877 

 Tubularia, gonozooids of, 869 



indivisa, 869 



Tubuli in Nummulites, 827 ; of dentine, 

 1024 



Tubulipora, 909 



Tulip, raphides of, 696 



Tully's (Lister's) achromatic microscope, 

 149 ; his live-box, 345 ; his triplet, 354 ; 

 his achromatic objective, 354 



' Tunic ' of Tunicata, 911 



TUNIC ATA, 904, 911-918 ; zoological posi- 

 tion of, 911; bibliography of, 918; 

 'liver 'of, 1047 



Turbellaria, 946, 947 



larvae of, collecting, 529 

 Turbinoid shell of Foraminifera, 797 

 Turbo, shell structure of, 928 

 Turkey-stone, use of, 508 ; constituents of, 



617 

 Turn-table, Shadbolt's, 451; Griffith's, 



451 



Turpentine, uses of, 444, 518 

 Turrell's mechanical stage, 176 

 Twin lamellae in leucite, 1078 

 Tylenchus tritici, 945 

 Tympanum of cricket, 999 

 Tyroglyphi, nymph of, 1009; legs of, 



1010 

 Tyroglyphidce, reproductive organs of, 



1012 ; characters of, 1013 



U 



Ulothrix, conjugation of, 557 

 Ulva, 560, 561 

 Ulvacece, 559-561 

 Umbelliferous plants, seeds of, 724 

 Umbonula verrucosa, 906 

 Under-corrected objective, 20, 21 

 Under-correction, 355-360 

 Unger, on the zob'spores of Vaucheria, 

 563 



