480 



Index 



TELSON, tel'son (G. telson, ex- 

 tremity) 814 



The unpaired terminal abdominal 



segment of Crustaceans. 

 TEMPORALIS, temporalis (L. tempus, 



time) 81 



TENDON, ten'don (L. Undo, to 



stretch) 78 



A white, glistening, fibrous cord 



connecting a muscle with a movable 



structure. 

 TENSOR, ten'sor ( L. tensus, stretch . . 337 

 TENTACLES, ten'taklz (L. L. tentacu- 



Iwin, a feeler ) 249 



Slender flexible organs on the head 



of many small animals, used for 



feeling, exploration, etc., as in snails, 



insects crabs. 

 TENIA CULOCYSTS, tentak'Glosists 



(L. L. tentaculum, a feeler + G. 



kystis, a bladder) 257 



Club-shaped bodies on the umbrella 



margin. 

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



a monster + logos, discourse) 32 



TERES, tee'reez (L. round) 156 



TERGITE, ter'jit (L. tergum, back... 337 

 The dorsal chitinous plate on each 



segment of most Arthropoda. 

 TERGUM, ter'gum (L. tergum, back) .316 

 TERTIAN FEVER, ter'shan (L. 



tertianus, of the third day), defini- 

 tion of 133 



TESSERA PRINCEPS, tes'era (G. 



tessareo, four ) 257 



TESTES, tess'teez (L. testis) 47, 48 



Paired male reproductive organs. 



producing spermatozoa. 

 TETRABRANCHIA, tetrabrang'kia (G. 



tetra, four + branchia, gills) 423 



Cephalopods 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. 

 TETRAXO NIDA, tetrakson'ida ( G. 



tetra + axon, axis ) 421 



Sponges with tetraxon spicules. 

 TETRONERYTHR1N, tet'ronerith'rin 



(G. tetra + on + erythros, red) . . .319 



TETROPHIS 223 



A species of worms. 

 TH ALAS SI COLA, thalasikol'a ( G. 



thalassa, the sea + kolla, glue) 149 



The typical genus of Thalassa- 



colidae. 



TEALESSA, thales'a 313 



(Native name, subgenus of Pur- 



pora.) 

 THALIACEA, thalia'sea (G. thaliea, 



blooming) 427 



THALLOPHYTE, thal'lofit (G. thallos, 

 a young shoot + phytos, a plant) . . 



204, 205 



THALLUS, thal'us (G. thallos, a young 



shoot) 221 



THEOPHRASTUS, theofras'tus (Theo- 



phrastus, a Greek philosopher) 377 



THEORETICAL VS. PRACTICAL.... 22 



THEORIES OF LIFE 158 



THE PLANT-WORLD.. 186, 194, 203, 247 

 T H E R A P E UTICS, therapti'tiks (G. 



therapon, an attendant) 197 



THERMOMETERS 38 



THERMOTROPISM, thermot'tropizm 

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

 ing) 127 



THEROMORPHOUS, theromdr'fus (G. 

 ther, a wild beast + morphe, form) 



•' 45, 77 



T H I G M O TROPISM, thigmot'ropizm 

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

 ing) 126 



THORACIC, thohras'ik (L. thorax, 



thorax) 319, 365 



THOUGHT, definition of 183 



THREADWORMS 286, 303 



THYMUS, thy'mus (G. thymon, 



thyme) 53 



Extracts of , 52 



THYROID (or THYREOID), thy'roid, 



thy'reoid (G. thyreos, shield) 53 



Extracts of 52 



THYSANOPTERA, thisanop'tera (G. 

 thyranos, a tassel + pteron, wing) .425 



Insects with four narrow, mem- 

 branous wings fringed with long 

 hairs as the Thrips. 



THYSANURA 425, 433 



TIBIA, tib'ea (L. tibia, the shin bone). 77 

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



bone) 80 



TIBIO-FIBULA, tib'iofib'ula (L. tibia, 



a flute + fibula, which see ) 77 



TICKS, definition of . . 375 



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



woven ) 46 



Absorption 235 



Assimilating 237 



Botryoidal 285 



Conducting 235 



Covering 235 



Fundamental 230 



Mechanical 235 



Primary 230 



Protective 235 



Reproductive 239 



Secondary 232 



Storage 238 



Supporting . 235 



Synthesis 237 



TOLERANCE 197 



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

 Extensile .,..,,, , 47 



