48 Ins. 
INSECTA. 
in “ Contemporary Review,'’ Nov., 1885, by Lubbock. It is considered 
that these insects find their way home by means of landmarks ; Romanes, 
Nature, xxxii. p. 630. 
3. Muscular System. 
Muscular histology ; Limbeck (194), Rollet (290). 
4. Organs and Function of Nutrition. 
Dalla Torre proposes to designate by the name of Heterotrophy the 
occurrence of two or more modes of nutrition in one stage of the existence 
of a species ; Zool. Anz. viii. p. 692.— Gizzard of beetle ( Curculionidce ) 
figured ; J. Micr. & Nat. Sci. iv. p. 256, pi. xxi.—Histology of alimentary 
canal , Frenzel (115). 
5. Circulation and Kespiration. 
Circulation in embryo ; Ent. M. M xxii. p. 126.— Micro-organism found 
in the blood of Dytiscus marginalise Audollent, Bull. Soc. Ent. Fr. (6) 
v. p. lxxiv.—Blood serum, Krukenberg (180).—Respiratory movements, 
Plateau (249). 
6. Sexual Organs and Embryology. 
Internal sexual organs, development of; Balbiani (14), Schneider (309), 
Cholodkovsky ( Nematois ) (74).— Development of egg ; Kowalevsky (173), 
Wielovvisjski (362).— Embryology of Botys, Osborne (237). —Embryology 
of Bee , Grassi (129).—Origin of the endoderm in Lepicloptera ; Bruce, A. 
T., J. Ilopk. Univ. Circ. v. No. 43, p. 9, with woodcut.— Receptaculum 
seminis of Hymenoptera , Cheshire (72).—Postembryonal development of 
Musca, Rees (267).—Neotenia, Camerano (59). 
7. General Biology and Stray Notes. 
Biology of Dipt era, Portschinsky (254); of Lepidoptera , id. (253) ; of 
Aphis , Kessler (164).—Development of Musca vomitoria, Davison (88).— 
Hype rparasitism, Stein (332).—Notes on experiments made with the 
winged form of Phylloxera vastatrix raclicicola ; Morgan, P. E. Soc. 1885, 
pp. xxvii.-xxxi. : it is concluded that insufficiency of food is probably 
the chief factor in producing the winged form. Similar observation on 
Pemphigus , Goldi (125).—Conditions affecting vitality of egg of Silk¬ 
worm, Luciani (199).—-Conveying infection , Maddox (203).—Larvae of 
Biptera abundant at all depths, and in the most elevated lakes of the 
Alps, but Corethra plumicornis is the only one identified ; N. Denk. schw. 
Ges. xxix. 2 (Essai Plessis-Gouret), p. 51.— Galls: Ashmead (6, 7), 
Bargagli (17), Beyerinck (28), Cameron (63), Gadeau de Kerville (119), 
Low (197), Sclilechtendal (304), Thomas (340).— Hibernation and gela¬ 
tion, Hamilton (134).—Hatching Lepidoptera by artificial heat ; Canad. 
Ent. xvii. p. 76.— Low temperature in winter is less injurious to insects 
than to plants; Fallon, Bull. Soc. Ent. Fr. (6) v. p. lxxiv.— Cucullia 
