64 Ins. 
INSECTA, 
Air in cocoon of silkworms, Regnard (721).— Structure of terminal 
stigma in Hymenoptera , Carlet, C.R. (135). 
Influence of light on oxygenatiou, Loeb (519). 
6. SEXQAL ORGANS AND EMBRYOLOGY. 
Sexual organs of Thysanura , Grassi (329), Oudemans (G48, pp. 207- 
215.) 
Embryology, Bruce (111), Gbaber (324, 325) ; of Meloe , Nusbatjm 
(628) ; of viviparous Aphididce , Will (929, 930) ; of Musca , Butsciili 
(120); of Musca vomitoria, Voeltzkow (899). — First stages of develop- 
ment in egg of fly, Henking (370). — Embryology of parthenogenetic eggs 
of Liparis, Platner (677). — Development of entoderm in Blatta , 
Ciiolodkovsky (145). 
Oogenesis, Wielowieyski (928). — The structure and growth of the 
unfertilised egg, Leydig (512). 
Spermatogenesis, Gilson (313). 
Parthenogenesis, Massa (560) ; in Ocneria dispar , Bock (85). — Note on 
parthenogenesis in Bombyx mori , Verson, Zool. Anz. xi, p. 263, and 
Tichomiroff, pp. 342-344. 
Hermaphrodites, Becker (50), Mjk (598), Dittrich (192), Honratii 
(387). — Statistics as to hermaphroditism in Lepidoptera, Speyer, S. E. Z. 
xlix, pp. 201 & 202 ; of Lepidoptera, Honratii (387) ; of Gastropacha 
quercus, Bertkau, Verh. Ver. Rheinl. xlv, S. B. p. 67 ; of Apis mellijica, 
Lucas, p. lxxxiv, Bull. Soc. Ent. Fr. (6) viii. 
7. General Biology and Stray Notes. 
Parasitism, Michael (596). 
Histology of Musca vomitoria during metamorphosis, Rees (717). — 
Changes during pupation, Emerton (229).— Loss of woight in winter 
pupa of Pontia brassicce , Urecii (895). — Prolongation of pupation of 
Bombyx , Speyer (859). 
Formic acid in Lepidoptera , Poulton (682). 
Composition of nutritive paste of the bee, Planta (673). 
Sexual forms in Termitidce , Grassi (330, 331, 332). 
Influence of heat in producing varieties, Venus (898). 
Causation of seasonal dimorphism, Cockerell (156). — Dimorphism in 
larvae, Poulton (683). 
Ants and Aphididce, Bos (91). 
Ants and ants’ nest beetles, Wasmann (912). 
Plants and ants, Ludwig (533, 534), Schimper (801). 
Insects feigning death, Grote, Canad. Ent. xx, p. 120, Hamilton, t. c. 
p. 179, Webster, t. c. p. 199. 
Luminosity, Dittrich (193), Haase (352), Riley (758). 
Melanism, Weir, P. S. Lond. E. Soc. 1887, p. 40, also t. c. p. 73, Jordan 
( 424) ; in Lepidoptera , Chapman, Ent. M. M. xxv, p. 40 ; in London 
Lepidoptera , Tutt (891). 
Coloration of pupa and surroundings, White & Griffiths, P. E. Soc. 
