io8 FUNDAMENTALS OF AGRICULTURE. 



and damaged by storms. By selection strains have 

 been developed under the name of " stormproof " that 

 do not open widely, but such strains are generally 



NATURAL OPEN COTTON BOLL. 



rather difficult to pick. Most of the early varieties 

 have small bolls and short fiber. From 70 to 100 

 bolls of these varieties are required to yield a pound 

 of seed cotton. Large boll varieties are also being es- 

 tablished for early maturity, and of these 55 to 70 bolls 

 make a pound of seed cotton. Satisfactory results 

 have not been secured in attempts to grow an early 

 variety with long lint. 



Select Seed from Best Plants. The average farmer 

 gives little if any attention to selecting his cotton seed 



