68 Ins . 
XIII. INSECTA. 
(641). — Sound-producing ants, Livingstone, P. ent. Soc. London, 
1893, p. xxxv. — Sound-producing organs of ants, Sharp (890). — 
Chirping ants, Emery (266). — Sounds produced by ants, Janet (493). 
— Stridulation of ants, Wasmann (1029). — Use of Microphone for listen- 
ing to sounds, Preece, P. ent. Soc. London, 1893, p. xii. 
Mode of hovering Of Diptera , Car (146). 
Scent-organs (presumed) on head of Tineides , Meyrick, p. 573, P. Linn. 
Soc. N. S. Wales (2) vii. 
8. Muscular System. 
Structure of muscular fibrillse in repose of Bytiscus and Ilydrophilus, 
Tourneux (970). — Contraction of the striated muscles of Bombyx 
morij Patrizi (700). — Absolute power of muscles of Coleoptera , 
Camerano (140). — Absolute power of mandibular muscles of Coleoptera , 
Camerano (138). - 
4. Organs and Function of Nutrition, Circulation, and 
Respiration. 
Anatomy and histology of alimentary canal of Orthoptera , Yisart 
(1013). — The digestive secretions, with descriptions and figures of 
epithelium, Adlerz (8). — Ecdysis and food in Dlcranura , Seyfang, 
Entomologist, xxvi, p. 274. — Peculiar odour of myrmecophagous insects, 
Giard, p. cccv, Bull. Soc. ent. France, 1893. 
Malpighian tubes, their primitive number, homologies, &c., Wheeler 
(1050). — Malpighian tubes of Ceeidomyia larvae, Giard (374), Laboul- 
b£:ne, tom. eod. p. clxxiv. 
Glands, see Nervous System, p. 67. 
Action of toxic substances on eggs, larvae, and chrysalids of Bombyx 
mori , Raulin (749). 
Histology of tracheae, Stokes (942), quoted in Ent. News Philad. 1893, 
p. 90. — Origin of tracheae, Bernard (61). — Structure of stigmata in 
Melolontha larva, Boas (81). — Post-thoracic stigmata of larva of 
Jlhynchophorus palmarum t Blandford, P. ent. Soc. London, 1893, pp. 
ii & viii. — Respiratory movements and respiratory muscles in the thorax 
of Coleoptera , Camerano (139). 
Respiration of pupa of Bombyx , Luciani & Lo Monaco (603). — Rela- 
tions of respiration to metamorphosis in the silkworm, Bataillon (41).— 
Development of respiratory apparatus of Nepa } Martin (616). 
5. Sexual Organs and Embryology. 
The embryology of Xiphidium ensiferum , with discussion of many 
points connected with other insects, Wheeler (1049). — Embryology of 
Forficula , Heymons (441). 
Morphology of genital armour discussed, Peytoureau (704, 705, 706). 
— General character of $ copuiatory organs, Yerhoeff (1002), Esche- 
