245 FERTILIZERS 



out, that it may cool, and dip again until a solid 

 rim of paraffin is formed. Number each basket, 

 as it is easier thus to keep a record of it. Place 

 them on a tray, or in a shallow box, for greater 

 ease in handhng. 



Gather the soil in small quantities from differ- 

 ent parts of your field or garden and mix it 

 together. If you took it from one spot it would 

 not be representative, any more than a Congress 

 elected entirely from one section of the country 

 could rightly be called a House of Representa- 

 tives for the American people. Divide this 

 whole amount of soil into equal parts, having 

 one more part than you have fertilizers to test, 

 because you should have one basket of untreated 

 soil to act as a check to judge results by. Eleven 

 sorts are usually tested, which makes it necessary 

 for you to make twelve baskets altogether. 



1. Untreated soil. 



2. Soil with dry manure, at the rate of five 

 tons per acre. 



3. Soil with lime, one ton per acre. 



4. Soil with nitrate of soda, 200 pounds per 

 acre. 



5. Soil with sulphate of potash, 200 pounds 

 per acre. 



6. Soil with acid phosphate, 200 pounds per 

 acre. 



