ANALYTICAL INDEX 



Syphilis, apparent hereditary 

 transmission of, explained by 'a 

 peculiar mode of infection' (1826), 

 184. 



Systematic work, provisional nature 

 of conclusions of, 76, 77. 



Systematist, continuity the diffi- 

 culty of the, xv, 59, 60, 67 ; how 

 affected by views of the Origin, 46, 

 47, 59- 



Taeniocampa popiileti, 157 n. I. 



Tail of lizard and Lamarckism, 

 1 14 ; directive value of lizard's, dor- 

 mouse's, and squirrel's, 325 ; warning 

 sound made by vibration of snake's, 

 324; head of model resembled by 

 mimic's, 254, 368. 



Tails and ears, mutilation of, not 

 hereditary, 180, 181. 



' Tails ' of butterflies' wings, value 

 of, 281, 282, 325, 325 n. 1,351. 



Tait, Professor, on the age of the 

 earth, 2, 8, 15, 24 ; on the cooling of 

 the earth, n, 12. 



Tardigrada in classification, 33. 



tarsata, Ponera, with ant-like bug, 

 254, 255. 



Tarucus plinius, 283, 284. 



Ta-tsien-lu, W. China, home of 

 mimics of male //. misippus, 217: 

 see also 382-3. 



Taungyah Pass, Dawnat Range, 

 Burma, 287. 



Teeth, Lamarckian interpretation 

 of forms of, 114, 115. 



Tegetmeier, W. B., breeding ex- 

 periment suggested by Darwin to, 



79- 



Telegony, supposed example of, 

 185. 



Telephoridae mimicking Lyctdae, 

 276. 



telesiphe, Colaenis, a mimic of a 

 rarer Heliconius, 334 n. 2. 



telesiphe, Heliconius, though rarer, 

 the model of C. telesiphe, 334 n. 2. 



temminckii, Macroclemtnys, with 

 worm-like lures, 378. 



Temperature (see also External 

 Causes) : increment of, with depth 

 into earth's crust, 10 ; a stimulus to 

 change in the pupae of moths, 311 ; 

 of Byblia^ 341 ; of Araschnia, 342 ; 

 seasonal changes of Pierinae effected 

 by moisture and, 311, 312. 



Tenacity of life and warning 

 colours, 316. 



Tenaris, ' eye-spots ' of, 326 ; much 

 mimicked (by Elymntinae, Hypo- 

 limnas t and Papilio\ 326. 



Tenasserim, nests of Microhierax 

 with insects' wings found in, 290, 291, 

 291 n. i. 



Tenthredinidae, see Saw-flies, 238- 

 9> 320. 



TeracoluS) seasonal changes in, 

 311, 312, 341, 342; experiments on 

 physiological cause of seasonal 

 changes in, 311, 312; combination 

 of procryptic and mimetic colouring 

 in, 341, 350. 



Teracohis achine, 311, 342; 

 antigone, 342; etrida, 231, 349; 

 evenina, 342; omphale, 311, 

 342; regina, 341. 



Teratology, the material of, valu- 

 able for study of individual develop- 

 ment, valueless for evolution, xxxix, 

 xl ; Prof. Windle on, 136 n. i. 



Terias, found in stomach of Falco 

 subbuteo, 284. 



Terias hecabe, 288. 



Ternate, Moluccas, Wallace dis- 

 covers Natural Selection at, 194-5. 



Terpsiphone perspicillata, 283. 



Terrapin, with worm-like lures, 

 378. 



Terror, in man and animals, in- 

 spired by snake-like caterpillars, 367 

 367 n. 2, 368. 



Tertiary, brain of Secondary rep- 

 tiles compared with, 29; brain of 

 later mammals compared with early, 

 29 ; oldest Pteropoda not known 

 before, 42. 



tessellata, Melia, carrying sea- 

 anemones, 357. 



Tettix, mimicry of leaf-carrying 

 ant by, 260. 



Textularia, an existing genus in 

 the Carboniferous, 27. 



Thabeitkyin, Upper Burma, 291 

 n. i. 



THAYER, CRITICISM OF THE 

 STATEMENT THAT ANIMALS ARE 

 CONSPICUOUS BY, X. 321-3. 



Thayer, A. H., results obtained 

 by, quoted in Essay X, 293 ; on 

 resemblances to dead leaves, 299 ; 

 on neutralization of shadow, 299, 

 300 ; adjustable form of principle of, 

 300; on conspicuousness of the 



