SUGGESTIONS FOR TEACHERS 427 



soil with a cloth by placing the cloth under the wires. Number and 

 letter the squares on two adjoining sides respectively. Then every 

 square can be located by using a number and a letter. Take six grains 

 from each ear of corn to be tested and place them in the squares and at 

 the same time place a label composed of a number and a letter on each 

 ear, indicating where its six grains are. After the tester has seeds in 

 each square, cover it with damp cloths and keep them damp, also keep 

 the tester in a warm room. Discard all ears that do not give a 100 per 

 cent test. 



Other seeds may be tested the same as corn. 



Chapter XXXVIII. Have students bring to class all kinds of raw 

 fruit and branches of fruit trees, and examine them carefully for diseases 

 and animal pests. Have them bring in old fruit which dried on the 

 trees and examine for brown-rot. If this dried fruit (mummies) shows 

 any development of brown spores after it is kept moist in a warm room 

 for a week or more, brown-rot is present. 



Examine other plants for diseases and pests. 



