INDEX 



TENTOR1UM, tentoli'rceum ( L. Icmio. 



to stretch) 838 



TERATOLOGY, ter'atol'oji (G. teras, 



a monster -f logos, discourse) 31 



TERES, tee'reez (L. round) . . . 155 



Ligament 797 



TERGITE, ter'jlt (L. tergum, back) .336 



The dorsal chitinous plate on each 

 segment of most Arthropoda. 

 TERGUM, ter'gum (L. tergum, back) .315 

 T E R R E S T R 1AL VERTEBRATES, 



te.res'trial (L. terra, earth) 663 



Vertebrates living on the ground 

 as opposed to aerial, aquatic. 

 TERTIAN FEVER, ter'shan (L. 

 tertianus, of the third day), defini- 

 tion of ' 132 



TESSERA PRTNCEPS, tes'ra (G. 



tessarec, four ) 256 



TESTES, tess'teez (L. testis) 47. .'/S 



Paired male reproductive org;ms 

 producing spermatozoa. 



Descent of 818 



TESTUDINIDAE, testudin'ide (N. L. 



testudo, tortoise) 652 



TESTUDO ELEPHANTQPU8 720 



Ibera 7.W 



TETRABRANCHIA. tetrabrang'kia (G. 



tetra, four -f- branchia, gills) 421 



Cephalopoda with four gills, four 

 kidneys, and four auricles, and large 

 external shell, no suckers, and short 

 arms. Example Nautilus. 

 TETRAD, tet'rad (G. tetras. four)-.. 102 



A group of four. 

 TKTRAPO.DA, tetrap'dda (G. hlra, 



four + pous, foot ) 663 



TETRAXONIDA, tetrakson'ida (G. 



tetra -f- axon, axis) 419 



Sponges with tetraxon spieules. 

 TETRONERYTHR1 N, tet'ronerith'rin 

 (G. tetra + on -f erythros, red).. 31.8 



TETROPHI8 822 



A species of worms. 

 TH AL AMENCEPH ALON. th a 1 7i men - 

 sef'alon (G. thalamos, a receptacle.; 



engkepttalon, the brain) .,..." 66 



THALAMUS, thal'amus (L. chamber) 

 571. 839. 849 



TffALASSTCOLA, thalasikol'a (G. 

 thalassa, the sea -f- kolla, glue) .... 148 



The typical genus of Thfihixwi- 

 coUdae. 



THALESSA, thales'a SI 2 



(Native name, subgenus of pnr- 

 pora. ) 

 THALIAOEA, thalia'sea (G. ihaliea, 



blooming ) 424, 639 



Free swimming Urochordata with- 

 out tail in adult. 



Example Salpians. 

 THALLOPHYTE, thal'lofit (G. 1 halloa, 



a young shoot -4- phytots, a plant) ..,, ,. 



203, 204 



THALLUS, thal'us (G. t hallos, a young 



shoot) 220 



THECODONT, thee'kohdont (G. theke, 



sheath; odous, tooth), definition of. 733 

 THECOPHORA, theko'fora (G. theke, 



sheath ; pherein, to bear ) 652 



THEOPHRASTUS, theofras'tus (Theo- 



phrastus, a Greek philosopher) 376 



THEORETICAL VS. PRACTICAL.. . . 22 



THEORIES OF LIFE 1 57 



THE PLANT-WORLD. .185, 193, 202. 240 

 THERAPEUTICS, therapu'tiks (G. 



therapon, an attendant) lit 7 



THERMOMETERS 38 



THERMOTROPISM, thermot'tropizm 

 (G. therme, heat + trope, a turn- 

 ing) ' 127 



THEROMORPHOUS. theromor'fus (G. 

 ther, a wild beast -f- morphe, form ) . 



: 45, 77 



T H I G M OTROPISM, thigmot'rOpizm 

 (G. thigma, touch + trope, a turn- 

 ing) 126 



THORACIC, thohras'ik (L. thorax, 



thorax) .319. 364 



Duct 800 



THOUGHT, definition of 182 



THREADWORMS 285, 302 



THYMUS, thy'mus (G. thymon, thyme) 



* - .53, 77,:? 



Development of 587 



Extracts of ^'L 



THYROHYALS, thirohialz (G. thyra, 



door + hyoeidrs, Y-shaped) 73S 



The greater corn u a of the hyoid 

 bone. 



r rHYROID (or THYREQID), thy'roid. 

 thy'reeoid (G. 1hj/rco*. shield) . .53. ?//,? 



Cartilages .'.' 763 



Development of 588 



Extracts of 52 



THYSANOPTERA, thisanop'tera (G. 

 thyranos, a tassel -\- pteron, wing) .423 



Insects with four narrow, mem- 

 branous wings fringed with long 

 hairs as the 77/n'/;.s. 



THY8ANURA 422, 430 



TIBIA, tibb'eeah (L. tibia, the shin 



bone) 77, ?'".* 



TIBIALIS, tibial'Ts (L. tibia, the shin 



bone) 80 



Tf BIO-FIBULA , tib'iofib'ula ( L. tibia, 



a flute -f fibula, which see) 7e? 



TICKS, definition of 373 



TISSUE, tis'u or tish'u ( F. tissu, 



Avoven ) 46 



Absorption 234 " 



Assimilating 236 



Botryoidal 284 



Conducting 234 



Covering 234 



