COTTON STRUCTURE 



261 



237. Storm resist- 

 ance. — The struc- 

 ture of Ijoll most 

 favorable to " storm 

 resistance," or per- 

 sistence of tlie seed 

 cotton in the bur, is 

 the following : — 



(l)Afirm stiff wall, 

 which on drying does 

 not curl backward, 

 but serves to support 

 and protect the seed 

 cotton (Fig. 129). 



(2) Sufficient sepa- 

 ration of the parts of 

 the bur to make pick- 

 ing easy, but not 

 enough to permit 

 each lock to hang 

 separately. 



Fig. 129. — Storm-re.sist- 

 ANT Boll and Busa 



ABOVE ; BELOW, BOLLS 



AND Burs lacking 

 Storm Resistance. 



Below, the wallsof the l^ur 

 arc rolled back, permitting 

 the lorks of seed cotton to 

 separate and fall back- 

 ward : above, the walls of 

 the bur do not curve back- 

 ward, but support the seed 

 cotton in a compact mass. 



W^%^ 



