follows after 3 to 5 years. The diseased trees stand generally in low places 

 and the author is of the opinion that the increase of the alkali content in 

 the ground water is to blame. This trouble is found in Montana not simply 

 on poplars but also on other trees where irrigation is used. Drainage is 

 advisable. 



Page 856. Minora Shiga (On the effect of a partial removal of roots 

 and leaves upon the development of flowers. Journ. College of Science, 

 Tokyo, 1907, Vol. XXIII, Art. 4), reports on the promotion of blossom 

 development by the removal of the part of the roots. Different species of 

 very different plants experimented on acted differently under the same 

 manipulation. In IMiarbitis. Pisum arvense and ]'kia Paha the removal of 

 the main root and small lateral roots cause an unusually early and luxuriant 

 development of the blossoms. This was not the case in Fagopyrum. 

 Cutting off of the side roots promoted the formation of blossoms in Vicia 

 Paba and Pisum sativum var. arz'ensc, but did not do so in Pisum Arvense. 



End of Vol. I. 



