Buli<e;tin 170. 



Bulletin 170 discussed from the technical standpoint two 

 species of fungi that have, for the past two years, been under 

 experimental observation by the plant pathologists in relation 

 to apple diseases. The practical bearing of these fungi upon 

 orcharding will be discussed in a bulletin to be issued early in 

 1910. For these reasons this bulletin (170) was printed in a 

 limited edition and was sent only to the official mailing list, to 

 libraries and to exchanges. Copies may be had on application 

 to the Station. 



