On the Treatment of Pear Trees. 1 5 1 



the first instance, to the Horticultural Society. The follow- 

 ing are his instructions transcribed in his own words. The 

 sketch of a branch is subjoined to his letter, to which his 

 directions for pruning refer.* 



" The trees may be pruned any time from December to 

 February, and the spur at letter A, which produced fruit last 

 season, is cut down to the bud at D, as expressed in the an- 

 nexed figure. Letter B, is the two year old bud, which will 

 produce fruit next season. Letter C, is the one year old 

 bud." 



" The Composition." 



" To four gallons of water, add one pound of sweet or 

 soft soap ; two pounds of common sulphur ; four ounces of 

 tobacco ; four ounces of black pepper. Let it be boiled 

 together for twenty minutes, and used as directed." 



The mode of applying this composition Mr. Harrison 

 had mentioned in another part of his letter, namely, it is to 

 be laid on " with a painter's soft dusting brush," and in a 

 tepid state, what is called " new-milk warm." Respecting 

 the pruning, I have to remark, that what Mr. Harrison 

 calls the bud at D, is what I have in my former paper, de- 

 nominated the embryo of the future spur. The next season, 

 after pruning, it assumes the shape C ; the following year that 

 of B. and show s fruit the third spring. In his conversation 

 with me, Mr. Harrison did not express himself so distinct- 

 ly ; but said in general terms, that the young spur required 

 a whole year for being perfected, and would bear fruit the 



* Sec page 1 53. 



