THE COTTON PLANT 87 
cotton hairs gently in the most regular way possible, 
so as to form the strongest and longest threads from a 
given weight of raw material under limitations of out- 
put and cost. His concern is mainly with Quality. The 
actual growing of the crop does not appear at first sight 
to affect him, but closer consideration is now showing 
this to have been short-sight ; except by accident he 
cannot obtain the quality of cotton he wants, unless he 
‘knows what he wants, and why he wants it. The 
interests of the Grower and the Spinner are therefore 
intimately linked together; they are not merely an- 
tagonistic ; the former, chiefly interested in yield, loses 
something if he grows poor stuff which the spinner does 
not want; the latter, chiefly concerned with quality, 
has to pay for it unduly if the grower’s yield is low. 
GROWER anp SPINNER 
(Yield) (Quality) 
Plant Physiology Gametic Composition of Crop 
Fluctuation 
Crop Physiology Mendelism 
Crop Records Agriculture Pure Strains 
Crop Reports Variety Testing 
Crop Forecasts Seed Supply 
Merchanting Spinning Technique, etc. 
(Economics, Transport, etc.) (Physics, Colloids, Chemistry, 
Engineering, etc.). 
The total cotton crop of the world before the war 
amounted to a weight of some 12,000,000,000 Ib. per 
annum of cotton lint. The crop is usually spoken of in 
terms of “ bales,”” and since these bales vary somewhat 
