NINTH ANNUAL MEETING. 29 



Answer: I do not know whether I could make it suc- 

 ceed or not ; if I could, I would. The Early Prolific is a 

 successful peach, I would certainly recommend this. 



Question — Mr. S. B. Wakeman: Have you ever grown 

 the Carman peach? 



Answer: I have not. 



Question: Is there any place where the Northern Spy- 

 apple can be grown successfully except along the Hudson 

 River? 



Answer — Professor Gulley: Yes; to perfection in 

 Michigan, and in Vermont and Western New York, and, I 

 believe, could be grown equally well on the heavy lands of 

 Western Connecticut. 



After a brief recess, to allow members an opportunity 

 to register their membership with the Secretary, the fol- 

 lowing very instructive paper was presented: 



SOME DISEASES OF THE PEACH. 



By Dk. Wm. C. Sturgis, Connecticut Experiment Station, New Haven. 



In a consideration of the diseases to which the peach is 

 subject, we naturally think first of the Yellows, a disease 

 unfortunately so well known as to require no detailed 

 description here. It is widely spread, occurring practically 

 in every section of the country east of the Mississippi and 

 north of Tennessee and Carolina. It has been attrbuted to 

 a number of different causes, but it is safe to say that the 

 disease is a physiological one, rather than one due to para- 

 sites of any kind. Among the causes of a physiological 

 nature, the most probable seems to be a peculiar ferment 

 known as an enzym. This substance occurs normally in 

 small quantites in most, if not all, of the higher plants, but 

 when it occurs in excess it produces marked disturbances 

 due in some degree to the destructive action which it exer- 

 cises upon the chlorophyl or green coloring matter of the 

 plant. Recent investigations by Mr. A. F. Woods of the 

 United States Department of Agriculture indicates that to 

 the action of this ferment may be attributed the albinism 



