I.XDKX 



Fundamental 229 



Mechanical 234 



Primary 228 



Protective 234 



Reproductive 238 



Secondary 231 



Storage ' 237 



Supporting 234 



Synthesis 236 



TOLERANCE 190 



TONGUE, tiing (A. S. lunge, tongue) . 



Development of 588 



Extensile 47 



TONSIL, ton'sil (L. tonsilla. tonsil) 



731, 73it- 



TOOTH OF RATTLESNAKE ' .733 



TOPOGRAPHICAL, topografikal (G, 

 tophos, place -4- graphein, write) . . . 4H4 



TORPEDOES (542 . 



TORRENS 38S 



TORSION, tor'shun (L. torquerv: to 



twist) 480 . 



The twisting round of a gastropod 

 body as it develops. 

 TORUS TRANSVERSUS, to'rus (L. 



torus, a swelling ) 571 



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

 TRABECULAE ,trabek'yulee (L. little 



beam) 5i; 



Carnae 530. 541 



Cranii 540 



TRACHEAE. trfikf-f- (G. tracln/s. 



rough ) }.'>/> 



TRACHEATA. trakeat'a (G. trachys, 



rou?h) 312 



TRACHEIDS. trak'eids (L. trachia, 



windpipe) 231, 235 



TRACHYMEDUSAE, trak'imedn'se (G. 

 trachys, rough -f- L. medusa, 



medusae ) 419 



Hydrozoa without alternation of 

 generations. 



TRAGER 623 



TRAINING. MEANING OF 32. 157 



TRANSITIONAL CELLS, tranzish'onal 



(L. transire, to go across) 557 



TRANSVERSE PROCESS, tranz'vers 



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

 TRAPEZIUS, trapee'zeeus (G. trapcza. 



table) 829 



TRAPEZOID, tra'pezoid (G. lr<i);<i. 



table) 700 



TREMATODA, tremato'da (G. trema, 



a pore + eidos, resemblance) 



285. 420. 427 



The liver flukes. 

 TREMEX COLVMKA, tre'meks (G. 



trema, a hole) 373 



TREPOKEMA PALLIDUM, trepone'ma 

 (G. trepein, turn + nema, thread) . U t 6 



The spirochete of syphilis. 

 TR-ML AND ERROR. . . . 1 40. 181 



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



oaput, head j 81 



TRICHIA, trik'ia (G. thrix, hair) .. .205 , 

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



A parasite nematode worm. 

 TRICHINELLA SPIRALIS, trikinel'la.gy.9 



TR1CHIMASIS (see trichina) 302 



TRICHOCEPHALUS DISPAR, triko- 



sef'alus (G. thrix, a hair -4-. kephale, 



the head) 30$ 



TRICHOCYSTS, trik'osists (G. trix, 



hair + kystis, bladder ) 138- 



TRICHOMONA8, tnkOm'onas (G. 



thrix, hair + monos, single) 7^/> 



TRICHOPTERA, trikop'tera (G. thrix, 



hair + pteron, wing) 423 



Insects with four membraneous 



wings, longitudinally veined and 



covered with hairs. Example Cad- 

 dice Flies. 

 TRICE OSTRON C, YL US O RJ UN TA LI S 



301 



TRICHURIS TRICHirRA, trlkur'is 



triku'ra (G. thrix, a hair 4- oura, 



tail) 301 



A genus of Trema toda. 



TRICLADIDA 420 



Turbellaria with three main 



branches to intestine. 

 TRICONODONT, tricun'odunt (L. trett, 



three + conits, a cone + G. odontos, 



a tooth) 736' 



TRICUSPID VALVES, trykus'pid (L. 



tres, three ; cuspis, point ) 804 



TRIFID NUCLEUS, tri'fid (L. tres, 



three + findere, to cleave) US 



TRIGEMINAL GANGLION, trijem'i 



nal (L. trigeminus) 575 



TRTGEMINUS, tryjem'inus (L. three 



at a birth, triple) (K8 



TRIGODONT, trigodont (L. tres + 



odontos, a tooth) 736 



TRIGONUM LEMNISCI. trigo'num (L. 



trigonum. a triangle) 839, 841 



TRIONYX GANGETICTW, tri'oniks 



(L. tres, three -f- onyx, a nail) . . . .683 

 TRIONYX HURUM (see above) t L. 



tres + G. onyx) 683 



T RI PLOBLA ST, trip'loblast ( G. 



triplax, triple + blastos, a bud). 107, 247 

 T R I Q U E T R U M, trikwet'rum ( L. 



'triquetrus, three-cornered ) 709 



The cuneiform carpal bone; a 



wormian bone. 

 TRI.RADIAL, trlra'dial (L. tres. three; 



radius, a ray ) 678 



TRITICUM. trit'icum (L. tri-tioum,, 



wheat) ?''' 



A genus of grasses. 

 TRITON CRISTATVH, trl'ton erista'- 



tus (G. Triton, a sea god) . . . .584, 48 



