90 



THE NATURE-STUDY REVIEW 



[6:4-Apr., 1910 



ishes and lettuce for early market. (Varieties of lettuce had 

 been selected also.) 



The conditions of the experiment discussed, we were ready 

 for the planting. It was decided to combine the variety test 

 with the fertilizer test. The plots used were each ten by ten 

 feet square, separated by three foot strips of sod, the soil being 

 uniform throughout so far as we knew. In the first plot were 

 to be planted seven varieties of radish — a row to a variety — and 

 no fertilizer applied. The next plot was to be similarly plant- 

 ed, with the same varieties, but treated with nitrate of soda. 

 On two other plots lettuce was to be used in a parallel experi- 

 ment. 



FERTILIZED RADISHKS 



(4) The season, fortunately, was favorable, and our 

 radishes matured quickly. Let it be understood, however, that 

 intelligence in farming is rated higher than a "providential" 

 season, by those who have a right to speak on the subject. 



(5) Good sense was at a premium when it came to the 

 actual planting. How to mark the rows, how far apart they 

 should be, the distance between seeds in the row. the depth of 

 covering, and the like, afforded problems in arithmetic, geom- 



