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have both of them yellov/ cotton. The coloured state how- 
ever is common to several cottons, probably to all. We 
find it in the hill cotton of Assam and in samples from 
China (Ning-Po), both Goss, herbaceum proper, and I am 
told it is not unfrequently found in the fields of this species 
in India and elsewhere. 
In India however the sort actually in cultivation is the 
yellow form of G. hirsutvm (Orleans), and my samples from 
Malta are of the same kind. The only use that I know of 
for this staple is to make the cotton blanket clothing of the 
Afghans, and I think also the Kabyles use it for the same 
purpose. 
It seems to be an object of regard, and even veneration, 
amongst the aborigines of various countries. In Peru the 
country people weave a striped cloth, white and yellow, from 
it, and the bodies of their ancient princes the Incas were 
found to have been buried enveloped in the rich brown 
wool of a coloured form of the large native plant. 
The paler brown staple alluded to as coming from Africa 
is the produce of a coarse kind of Egyptian, and is of 
stronger quality than most. The curious kidney cotton also 
assumes this appearance, as I have samples of it from Para- 
hyba del Norte, and have raised plants from its seeds. In 
all cases the staple suffers an unfavourable change when 
assuming this state, and is invariably more or less weak and 
short. 
The occurence of the yellow state in so many different 
kinds will go far to account for the diversity in quality 
alluded to. 
A tendency to brown coloration seems peculiar to the 
genus ; it shows itself in the dark hue of the expressed oil, 
and when injury to the seed and capsule, by insects or 
otherwise, has occurred, the extravasation has resulted iu 
stains upon the, properly, white fibre. 
In the green seed capsule will be found two distinct 
