Index 



481 



TORRENS 389 



TOXIC, tox'ik (G. toxikon, poison) .... 95 

 TRABECULAR trabek'ule (L. little 



beam ) 56 



TRACHEATA, trakeat'a (G. trachys, 



rough) 313 



TRACHEIBS, trak'eids (L. trachia, 



windpipe) 232, 236 



TRACHY MEDUSAE, trak'imedu'se (G. 



t r aohy s, rough + L. Medusa, 



Medusae) 421 



Hydrozoa without alternation of 



generations. 



TRAINING, MEANING OF 32, 158 



TRANSVERSE PROCESS, tranz'vers 



(L. trans, across + vertere, to turn) 72 

 TREMATODA, tremato'da (G. trema, 



a pore + eidos, resemblance) 



286, 422, 430 



The liver flukes. 

 TREMEX COLUMBA, tre'meks (G. 



trema, a hole) 374 



TREPONEMA PALLIDUM, trepone'ma 



(G. trepein, turn + nema, thread) . .llf! 

 The spirochete of syphilis. 



TRIAL AND ERROR 141, 182 



TRICEPS, try'seps (L. tres, three; 



caput, head ) 82 



TRICHIA, trik'ia (G. thrice, hair) ... .206 

 TRICHINA, trikl'na (G. thrix, a hair). 302 



A parasite nematode worm. 

 TRICHINELLA SPIRALIS, trikmel'la.299 



TRICHINIASIS (see trichina) 303 



TRICHOCEPHALUS DISPAR, trlko- 



sef'alus (G. thrix, a hair -f- kephale, 



the head ) 306 



TRICHOCYSTS, trik'osists (G. trix, 



hair + kystis, bladder) 139 



TRI OH M ON AS, trikom 'onas ( G. 



thrix, hair + monos, single) lJf6 



TRICHOPTERA, trikop'tera (G. thrix, 



hair -f- pteron, wing) 426 



Insects with four membranous 



wings, longitudinally veined and 



covered with hairs. Example — Cad- 



cf^op Vltp^ 

 TRICHOSTRONGYLUS ORIENTALIS, 



302 



TRICHURIS TRICHIURA, trikur'is 



triku'ra (G. thrix, a hair -f- oura, 



tail ) 302 



A genus of Trematoda. 



TRICLADIDA 422 



Turbellaria with three main 



branches to intestine. 

 TRIFID NUCLEUS, tri'fid (L. tres, 



three + findere, to cleave) 119 



TRIGEMINUS, tryjem'inus (L. three 



at a birth, triple) 68 



TRILOBITES, triTobitz (G. treis, three 



+ lobos, lobes 432 



Organisms like the sow bug hav- 

 ing the body arranged in three parts, 



head, thorax, and abdomen. 



TRIPLOBLAST, trip'loblast (G. 



triplax, triple + blastos, a bud). 107, 248 

 TRITICUM, trit'icum. (L. triticum, 



wheat) 284 



A genus of grasses. 

 TROCHANTER, trokan'ter (G. trochos, 



wheel) 329 



TROCHLEARIS, trok'lear'is (G. 



trochilia, a pulley) 68 



TROCHOPHORE, trok'ofor (G. trochos, 



wheel + pherein, to bear) 310 



TROCHO SPHERE, trok'osfer (G. 



trochos, wheel + sphaira, globe) ...281 



TROPICAL BOIL 145 



TROPISM, tro'pizm (G. trope, a turn- 

 ing) 127 



T RUN C ATE LLA, trunk'atel'la ( L. 



truncare, cut off) 156 



TRUNCUS ARTERIOSUS, trunk'us 



arter'io'sus (L. truncus, a stock) . . 



54, 55, 58 



TRYPANOSOMA GAMBIENSE, tri- 



pan'oso'mah (G. trypanos, borer + 



soma, body ) 144 



TRYPSIN, trip'sin (G. tryein, to rub 



down, + pepsis, a digestion) ... .50, 269 



TSCHERMAK 389 



TSETSE FLY 145, 310 



TUBE FUNGI, tub (L. tuba, a pipe) .209 

 TUBERCLES, tu'berkl (L. tuberculum, 



a small hump) 193 



TUBERCULA PUPERTAT1S 278 



TUBES— 



Annular , 236 



Latex 236 



Pitted 235 



Reticulate 235 



Scalariform 235 



Sieve 236 



Spiral 236 



TUBIFEX, tub'ifeks (L. tubus + 



facere, to make ) 284 



A sub-class of Oligochaeta. 

 TUBIPORA MUSIC A, tubi'pera (L. 



tubus, a tube + pora, a pore) 258 



Pipe-organ coral. 

 TU BU LI DENT AT A, tu'bulidenta'ta 

 (G. tubulus, a tube + dentatus, 



toothed) ...428 



Burrowing mammals of Africa, 

 known as Cape ant-eaters. 

 TUNICATA, tu'nika'ta (L. tunica, 



tunic) 427. 434 



Fixed forms of Urochordata with- 

 out tail in adult. Example — sea 

 squirt. 

 TURBELLARIA, terbela'ria (L. turbo, 



disturb) 286, 422, 430 



Free-living Platyhelmhithcs with 

 ciliated ectoderm. 

 TYMPANIC, TYMPANUM, timpan'ik, 

 tim'panum (L. tympanum, drum). 45, 71 



