654 Inoculation of Leguminous Plants. [feb., 



Beans dressed with Moore's culture on one farm, and peas 

 dressed with Moore's culture for one plot and Hiltner's for 

 another, produced no visible increase over undressed plots. 

 The roots of all the plants were well covered with nodules. A 

 sack of peas was dressed for each plot, and it was found quite 

 easy to dress them by the method previously mentioned. 



Another experiment was conducted at Diseworth, in Leicester- 

 shire, on a heavy clay soil which had not been used for peas for 

 very many years. On March 25th, a fresh culture of Moore's 

 inoculating material was used for dressing peas for a half-acre 

 plot, an equal weight of untreated peas being sown on another 

 half-acre plot. At a very early stage the dressed plot showed 

 more healthy and finer plants than the undressed. The peas in 

 the undressed plot were suffering from disease. When the peas 

 were threshed in November, it was found that the crop from the 

 dressed plot weighed 108 stones, while that from the undressed 

 weighed only 66 stones. 



Leeds. — Field plots with clover from different countries sown 

 in oats at Manor Farm, Garforth. 



Each plot was divided into three parts, the seed for one was 

 dressed with Hiltner's cultures, for another with Moore's cul- 

 tures, while in the third case the seed was untreated. 



The quantity of seed sown on each of the thirty-nine plots was 

 so adjusted that each plot received an equal number of germina- 

 ting seeds. The seeds were soaked in clean sterilised germinating 

 dishes containing the respective culture fluids for about two 

 hours on April 14th, 1905. The seed was considered to be too 

 wet for sowing uniformly, and clean white sand was therefore 

 mixed with each dish of seed till the excess moisture was taken 

 up, the sand and seed being thoroughly mixed. On April 15th, 

 when the sand and seed were dry enough, the sowing was made 

 by hand, with precautions to prevent the organisms being carried 

 from one plot to another. 



On August 2 ist, after the oat crop was harvested, the clovers 

 were inspected by Dr. Smith. The general result observed was 

 that the uninoculated plots of all the thirteen varieties were 

 better than the inoculated plots. Better results were obtained 

 from the American cultures than from the German cultures, 

 except in the case of two varieties. 



On December 7th, the plots were again examined, and a 



