INDEX 



THE 



' Theca ' of mosses, 671 

 Thecaphora,868 



TJiecata, 868, 870 



zoophytic stage of, 877 

 Thermo-regulator, Reichert's, 453 

 Thermostatic stage, Dallinger's, 344- 



346 



Thoma's (Jung) microtome, 461-469 



Thompson (J. Vaughan), on pentacrinoid 

 larva of Antedon, 901 ; on Cirripedin, 

 967 



Thomson (Wyville), on development of 

 Antedon, 903 



Thread-cells of Ciliata, 773 ; of Hydra, 

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

 narians, 947 



' Thread-worm,' 944 



Threads of spiders' webs, 1015 



Thura/mmina papillata, 815 



Thwaites, on conjugation of Epithemia, 

 599 ; of Melosira, 560 



Thysanura, scales of, 977 



Ticks, 1008. See Acarhui 



Tineidce, wings of, 999 



Tinoporus baculatits, 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 cerevisice, 645 



Total reflexion, 6, 7 



Tourmaline, pleochroism in, 1078 



Tow-net, 528 



Tow-nets of Challenger Expedition, 529 



note 

 Tracheae of insects, 994; of Acarin, 



1011 

 Trache'ides of ferns, 674 ; of conifers, 698, 



703 



Trachelomonas, 545 

 Tradescantia virginira, cyclosis in 



hairs of, 691 

 Tragulusjavanicus, red blood-corpuscle 



of, 1035 



Trematodes, 945 

 Triceratium, 588, 61:! 



as test for illumination, 415, 4 Hi 



favus, 593, 613 



fiiniirint ii in, as test for medium 

 powers, 389 



Tnrhocysts of Ciliata, 773 



7 'rirliodd h/tice.us, crawling of, 774; re- 

 production of, 780, 781 



TricJtodina grandinella, a phase in de- 

 velopment of Vorfifftld, 78(1 



Trichogyne of Colcochcete, 57") 

 - of Flridi'ii\ (i:; - 2 ; in lichens, li.'O 



Trichonympha, 77 1 



Trichophore of Fli-iilnr, 632 



UNG 



Trichr>phrija,& 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 zizi/2j]n>nis,-p&l&te of, 931 

 Trombicliiclte, 1008, 1009; legs of, 1010 ; 



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



1011 ; characters of, 1012 

 Trombidium, maxillae of, 1010 ; larvae of, 



1013 



liolosericiun, 1013 

 Trophi of Ii of if em, 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 rivnloriim, gregarine of, 751 

 TuMpora, 877 



Tnbularia, gonozooids of, 869 

 indivisa, 869 

 Tubuli in Nummulites, 827 ; of dentine, 



1024 



Titbulipora, 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 

 TUNICATA, 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 

 Tylcnclius tritici, 945 

 Tympanum of cricket, 999 

 TyrogtypM, nymph of, 1009; legs of, 



1010 



Tyrogl/yphidce, reproductive organs of, 

 1012 '; characters of, 1013 



U 



Ulothrix, conjugation of, f>">7 

 Ulva, 560, 561 

 I'li-orea, 559-561 

 Umbelliferous plants, seeds of, 724 

 Unibonula verrucosa, 9(i(i 

 Under-corrected objective, 20, '21 

 Under-correction, 355-360 

 Unger, on the zoospores of Vaucheria, 

 563 



