For some years, much of my leisure time has been devoted to the study of the anatomy, development, and habits of the Annulosa, and especially of Insects, on which subjects I have published various memoirs, chiefly in the Transactions of the Royal, Linnæan, and Entomological Societies: of these papers I subjoin a list. Although the details, of which these memoirs necessarily for the most part consist, offer little interest, excepting to those persons who are specially devoted to Entomology, still

FIG. 1. Cricket. Westwood, Intro. to the Modern Classification of Insects, vol. i. p. 440. 2. Earwig. Westwood, loc. cit. vol. i. p. 399. 3. Aphis . Packard, Guide to the Study of Insects, pp. 521, 522. 4. Scolytus . Westwood, loc. cit. vol. i. p. 350. 5. Anthrax . Westwood, loc. cit. vol. ii. p. 538. 6. Balaninus . 7. Cynips . Westwood, loc. cit. vol. ii. p. 121. 8. Ant ( Formica ). Westwood, loc. cit. vol. ii. p. 218. 9. Wasp. Ormerod, Nat. Hist. of Wasps, pl. i. fig. 1. FIG. 1. Larva of Crick

FIG. 1. Larva of the Cockchafer ( Melolontha ) 2. Larva of Cetonia . 3. Larva of Trox . 4. Larva of Oryctes . 5. Larva of Aphodius . 6. Larva of Lucanus . 7. Larva of Brachytarsus . 8. Larva of Crioceris . 9. Larva of Sitaris humeralis. 10. Larva of Sitaris humeralis , in the second stage. 11. Larva of Sitaris humeralis , in the third stage. 12. Larva of Sitaris humeralis , in the fourth stage. 13. Pupa of Sitaris . 14. Larva of Sirex . 15. Egg of Rhynchites , showing the parasitic larva. 16. Th

About forty years ago the civil and ecclesiastical authorities of St. Fernando in Chili arrested a certain M. Renous on a charge of witchcraft, because he kept some caterpillars which turned into butterflies. 1 This was no doubt an extreme case of ignorance; it is now almost universally known that the great majority of insects quit the egg in a state very different from that which they ultimately assume; and the general statement in works on entomology has been that the life of an insect may be