ASSIMILATIVE COLOURATION. 407 
irregular and incised, while they are hardly dentate in marshy 
stations, when it is called Taraxacum palustre.”* ‘‘ Plants 
growing on chalky soils, when compared with those growing on 
richer soils, are often more thickly covered with down, which is 
usually of a white or grey colour. Their leaves are frequently of 
a bluish green tint, more deeply cut, and less veined, while their 
flowers tend to be larger and of a lighter tint. . . . Sea-salt 
has the general effect on many different kinds of plants of pro- 
ducing moist fleshy leaves and red tints.” + The Rev. Hamlet 
Clark records a remark made to him by ‘one who evidently 
knew the subject’’:—‘‘ The quality of wine depends always and 
absolutely on the locality in which the vineyards are cultivated, not 
on the stock whence the young trees are derived. The same vine 
which in the South of France produces French wines will, if 
transplanted to the Cape, produce Cape, to Madeira, Madeira, to 
Teneriffe, Teneriffe wine.” | According to Allan Gordon Cameron, 
‘** The ground-tint, so to speak, among Old World Deer—genera 
Cervulus and Cervus—is from brown to black, but unmistakably 
dark; among New World Deer, on the other hand,—genus 
Cariacus,—it is a light stone colour, sometimes very light indeed. 
Before me, as I write, are the antlers of a British Stag and of an 
American Black-tailed Deer, which to a casual observer exhibit 
almost the difference in colour between black and white. It 
seems to me that a contrast of this kind, which is fairly constant 
in the respective species, cannot be ascribed either to the quality 
of the fraying post or to the constituents of the blood-stain on 
the antlers, but must be a specific character of the bone structure, 
which reacts differently to more or less similar external condi- 
tions. Variation in the colour of horns, both in Oxen and 
Antelopes, seems to point the same way.’’§ Moseley was told 
that the Goats which are wild on the island of St. Vincent, one 
of the Cape Verde Islands, ‘‘ have all attained a red colour 
resembling that of the rocks.” || As the Rev. H. A. Macpherson 
remarks, ‘‘the colour of Red Deer varies not only with the 
* © Hixperimental Evolution,’ pp. 72, 91, 95. 
+ Romanes, ‘ Darwin, and after Darwin,’ vol. ii. p. 207. 
1 ‘Letters Home,’ p. 90. 
§ ‘Field,’ January 16th, 1897. 
| ‘ Notes by a Naturalist on the ‘‘ Challenger,”’ p. 54. 
