494 



THE POPULAR SCIENCE MONTHLY. 



the sowing of the seed ; twenty-five c. c. in the case of the peas, 

 the vetches, and clover, and fifty c. c. in that of the lupines and 

 lucern. The seeds, carefully selected and weighed, as in 1888, 

 were sown on July 10th that is, about four weeks earlier than in 

 the previous year, but still not as early as was desirable." 



Fig. 1. Peas. 



Ten seeds of clover, three of the lupines, and two each of the 

 peas, vetches, and lucern, were put in each pot. " No analytical 

 results of the experiments of 1889 are as yet available," and we 

 can only notice the relative growth of the plants under the differ- 



