40 Gen. Sub. 
I. GENERAL SUBJECTS. 
Physiology of Decapod Crustaceans: — Branchial glands excretory as 
well as the green glands, they form carcinuric acid, and seem also to share 
in phagocytosis. The two parts of the green - gland labyrinth have 
different functions. The mid-gut gland absorbs peptones and sugars, the 
short mid-gut fats. The mid-gut gland also regulates amount of water 
in the blood; Cu^not (113). 
Function of liver in Crustaceans and Molluscs ; Saint-Hilaire (445). 
Bursa Fabricii, amygdaloid glands, Peyer’s patches, spleen, thymus, 
thyroid, pituitary body ; Retterer (418). 
Classification of glands ; Gley (186). 
Stigmata of Mastigophora , function as sensitive to light and heat ; 
FRANzri (167). 
Chitin : — Different kinds of ; various kinds in different animals might 
bo used in classification ; regarded as amid. -derivatives of carbohydrates ; 
in behaviour to iodine and aniline stains chitin resembles amyloid (the 
pathological product) ; cellulose is only certainly known in Tunicates ; 
the chitin occurs in loose chemical association with proteid substances : 
Krawkow (301). 
Animal chlorophyll and symbiosis ; Bouvier (53). 
Geotropism of lower animals, Infusorians, &c.; Jensen (271). 
Heliotropic animals ; Loeb (319). 
Extremes of temperature to which organisms may adapt themselves ; 
De Yarigny (511). 
Muscles of Invertebrates, force of ; Camerano (86). 
Origin and nature of movement ; Soury (481). 
Locomotion of animals ; Le Hello (311), Marey (338, 339). 
Pigment : — Physiology of ; the pigments of the scales in Lepidoptera 
belong to the uric acid group and to related groups, including the nuclein- 
bases (xanthiu, hypoxanthin, adenin, guanin), which are decomposition- 
products of nuclein along with albumen and phosphoric acid ; Urecii 
(508). — Colour-change : turning white in winter ; Schwalbe (466). — 
Coloration: the typical coloration of the yolk sac of the Fundulus embryo 
is due to a specific, probably chemical, irritability of the chromatophores 
which are forced by this irritability to migrate to the blood-vessels, and 
gather on their surface ; Loeb (321). 
Senses and Intelligence : — Senses of Beroe : Diffuse skin sensitiveness 
to various stimuli ; pole-plates not olfactory ; no olfactory organ ; little 
chemical sense ; the aboral sense-organ not a nervous central organ ; 
ihe activity of the statolith organ is a reflex process ; Nagel (369). 
Sense of equilibrium in Fishes : Dynamical functions, sensations of 
rotational movement, localised in semicircular canals, stimulation during 
body movement ; statical functions, sensations of position of body in 
space, localised in otolithic parts, stimulation continual ; Lee 
(310). 
Sense-Organs of Clepsine: The suggestiveness of a series beginning with 
purely tactile organs and ending with purely visual organs ; Whitman 
(546). 
