2 BULLETIN" 294, U. S. DEPARTMENT OF AGEICULTUEE. 



Emphasize the desirability of communities restricting themselves 

 to one kind of cotton. Place the above varieties under the following 

 groups: (1) Big-boll group (see fig. 1); (2) long-staple group (see 

 fig. 2); and (3) small-boiled early group (see fig. 3). 



Exercises. — Have six or more pupils bring all the varieties of cotton 

 mentioned in this lesson they can find at home or in the neighbor- 



Fig. 1.— Triumph. 



hood. These samples should be used in studying the shape of plant, 

 size and shape of bolls, and relative earliness and colors of seed. 

 Have the pupils report in writing the opinions of several fanners as 

 to which varieties are thought to make the largest yields of lint. 

 Before the pupils attempt to select the most- desirable plants from 

 which to select seed for the next year's crop, have (hem read the 



