60 Qen. Sab . 
I. GENERAL SUBJECTS. 
tion of insects ; Spuler (666). — Change of colour, Green Aphides become 
black on Chrysanthemums ; Grill (260). — Colour-relations of insects ; 
Scudder (643). — Uses of colour to insects ; Poulton (533). — The kinds 
of optic purple in the Yertebrate series ; KOttgen & Abelsdorff (358). 
— Protective coloration in Nemerteans ; Burger (85). — Pigmentation of 
Plankton Gasteropods ; Simuoth (655). — Melaine of Limncea , similar to 
that in ink-bag of Cephalopoda, and perhaps a product of disassimilation, 
deposited in certain tissues which function as reins d’accumulation ; 
Andr$ (7). — Pigmentation of wall-lizard described and discussed ; its 
abundance correlated with superior physical vigour; (see Sexual Selection , 
p. 79); Douglass (156). — Cohn’s Haematochrom, what it includes; 
Zopf(780). — Origin of pigment and markings in Hirudinea ; Graf (255). 
- — Coloration of Mammals. Facts and good figures. Speculations, such 
as correspondence of spots to ancestral armour-plates ; Bonavia (52).— r 
— So-called attractive coloration in animals ; Reeker (565). — Colour- 
change in plumage of birds; Gatke (223). — Colour-change of Ohamceleon 
and other reptiles ; Keller (338). — Colours of the deep-sea Crustacea ; 
Faxon (189).— Pelageine from Pelagia , C 20 , H 7 , N0 7 ; Griffiths & 
Pwtt (259). Cupreine from Curculio cupreus =C l6 , H l8 , NO ; Grif- 
fiths (258). 
Muscular , Nervous } and Sensory Systems. 
Electric changes in nerve and muscle, electric fishes, &c. ; Bieder- 
mann (43). 
Muscular system : — “Mechanism” of muscular contraction ; Imbert 
(321). — Source of muscular energy ; Noel Paton (513). — Muscularity in 
Protists and Metazoa ; Biedermann (43). — Nature of muscular contrac- 
tion ; Engelmann (183).— Animal locomotion ; Le Hello (386). — 
Analysis of locomotion of crayfish, &c. ; List (393, 394). — Locomotion of 
Invertebrates : crab, hermit-crab, Molluscs ; Stewart (668).— Problem 
of flight; Claus (111). 
Nervous system and sense-organs : — Physiological changes in nervous 
system, growth, rhythms, fatigue, old age, &c. ; Donaldson (154). — 
Physiology of nervous tissue, in part comparative ; Biedermann (43). — 
The activity of the nerve-cell is associated with turgescence of the cyto- 
plasm ; fatigue produces gradual diminution in size ; in activity the 
chromatin of nucleus seems at first slightly to increase ; in fatigue it 
exhibits diminution in size, and more diffuse distribution; Lugaro (412). 
— Theory of sleep; Duval (168). — Hibernation (cf. supra); Dubois (162). 
— Nervous structure and functions ; Biedermann (53). — Two funda- 
mental “laws” of nerve-action in relation to the modern nerve-cell ; 
Waller (728). — Sensory stimuli, theory of ; all depend on pressure- 
changes ; Weinland (736). — Physiology of the senses: studies in the 
comparative feeding of Selachians; Uexkull (701). — Notes on physiology 
and psychology of Actinice ; Loeb (400). — Function of the canal system 
beneath the skin of Selachii ; Fuchs (218). 
