HEREDITY, EVOLUTION. 
Gen. Sub. 51 
Variation in Aurelia aurita ; Browne (80).—In Bufo vulgaris ; Came- 
rano (92).—Variations in lumbo-sacral plexus ; Bardeen & Elting (25). 
—In human spines ; Dwight (165).—In Littorina ; Johansen (327).—In 
the plates of Arbacia ; Osborn (495).—In lamprey ; Rosmini (589).—In 
Adalia bipunctatq, ; Schroder (608).—In shrikes; Strong (640).—In 
fowls ; Tegetmeier (648). 
Colours of guillemot’s eggs ; Barrett-Hamilton (28). 
Variation in plumage of fowls ; Blanchon (47). 
Long-tailed Japanese fowls ; Cunningham (118); Finn (185). 
Colour-variation in adders ; Leighton (376). 
Are there species in process of formation?; Wasmann (694).—Statistical 
study of variation; Camerano (94); Cattaneo (97); Griffini (260).— 
On the collection of material for the study of species ; Pace (498). 
Experimental study of variation ; Ewart (175-177).—Saltatory, cases 
of; Eigenmann & Cox (168).-—Molecular basis of variation ; Gautier 
(232).—Transitions in species of Planorbis ; Hilgendorf (296).—Interest¬ 
ing case of cats with rudimentary tails ; Kennel (338).—Sexual variation 
in male beetles; Lesne (379). Seasonal dimorphism; Marshall (421).— 
Absence of variation in a great swarm of Myriopods ; Mauck (429).— 
Variation in a newly arisen species of Medusa ; Mayer (430).—Partial 
albinism in man and animals ; Neveu-Lemaire (476).—Statistical cor¬ 
relation of characters not quantitatively measurable ; Pearson (506) — 
Skew variation ; Pearson (509).—Intra-individual variations in carapace 
of Brackyura ; Przibram (541).—Variation-statistics, problems and 
materials ; Ludwig (403a). 
c. Modification: Environment and Function. 
Influence of diet on plumage of fowls ; Blanchon (48). 
Modifications in spiders according to diet and light; Bosenberg (50). 
Seasonal histolysis ; Bohn (55).—Seasonal dimorphism ; Marshall 
(422). 
Influence of temperature during summer sleep ; Dubois (153).—On 
retinal purple ; Gatti (225).—Influence of temperature ; Gebhardt (235). 
Influence of fasting on sestivating marmot ; Dubois (156).—Dieting 
fowls, results of changes ; Houssay (306 & 307). 
Modifications of nerve-cells by fatigue ; Pugnat (542). 
Environmental modifications ; Ewart (175).—Influence of environment 
on colours of Cambarus ; Kent (339). 
Acclimatisation to saline solutions; Florentin (192).—Action of neutral 
salts on ciliated cells ; Genkin (240). 
A case of modification (functional) of hind-limbs in dog ; Fuld (208). 
Influence of climate on shell-formation ; Simroth (619). 
d. Selection and Isolation. 
Struggle between man and animals; Andres (9).—Problem of extinc¬ 
tion ; Crampton (113).—Some animals exterminated in 19th century; 
Lydekker (404).—Selection in relation to colouration of marine animals ; 
MTntosh (410). 
A concrete study in reference to Planarians ; Voigt (686). 
Germinal selection ; Costantin (112); Ewart (175); Thomson (654). 
Natural selection in Clausilia laminata ; Weldon (704a).—N atural 
selection in Man ; Beeton & Pearson (40a). 
e. Particular Problems. 
Protective adaptations ; Alcock (5). 
