REPORT OF THE CHEMIST. 



145 



The analytical data of this series are given as follows :— 



TABLE IIL 



AMOUNTS OF NITROaKI?, ASH CONSTITUKNTS KYTD OROAKIO MATTER. 



Again, it is to be noticed that the amounts of nitrogen increase with the total 

 weight of the crop ; the same is also true of the organic matter. In these important 

 constituents, larger quantities were obtained from the treated pots than from the 

 untreated or check pots, and thus we have further testimony to the favourable 

 action of the bacterial culture. It is worthy of note that the roots contained amounts 

 of fertilizing constituents to the extent of at least two-thirds of those present in the 

 foliage. 



The percentage composition of the " dry matter " of the clovers under experiment 

 is presented as follows : — 



TABLE IV. 



PERCENTAGE COMPOSITION OP " DRY MATTEK." 



Slightly larger percentages of nitrogen were found in the inoculated plants, and 

 more especially in their roots, than in those untreated, in this respect differing from the 

 results obtained with the horse beans. The percentages of the other constituents are 

 practically the same throughout the series. 



Further experiments with Nitragin -will be made next season. With increased 

 data at our command we shall probably be in a position to speak more decisively m to 

 the value of this preparation. The indications of the present investigation, however, point 

 8a— 10 



