1905.] PUBLIC DOCUMENT — No. 33. 1G3 



much less thrifty and vigorous than tlio i)rune(l trees of the 

 same varieties. This lack of vigor is so marked that some 

 of the weak trees succumbed more or less completely to the 

 severe freezing of last winter. 



The trees next the unpruned specimens have been headed 

 back two or three times. They were all headed back mod- 



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Map ov Experimental Orchard. — A shows apple trees 40 feet apart; the circles 

 show peach trees impruncd; the half -circles show those slightly headed bacl;; the 

 squares indicate trees severely headed in ; the triangles show trees cut back to stubs ; 

 the blackened figures represent trees which died in 1904. 



erately in the spring of 1902 and again in the spring of 1903, 

 and some of them were headed back again in the spring of 

 1904. The trees so treated are thick-topped, with a good 

 deal of weak, sappy growth on the inside, — a condition 

 which is manifestl}^ objectionable. On the other hand, the 



