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 handling. 
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. 
