EXERCISE 37. PURITY TEST FOR GRASS, CLOVER, OR 

 ALFALFA SEED 



Equipment: Samples of seed from several sources and 

 a hand lens or magnifying glass. 



Method: Each student should be given two grams of 

 the sample, on a sheet of white paper. With the help of the 

 lens he should separate the seed into three piles: (1) chaff, 



Fig. 35. — ^Examining Clover Seed for Impurities and the Presence of 

 Other Seeds. (Courtesy of Extension Department.) 



