ADVANTAGE OF GRAFTING CERTAIN TREES. 175 



stating, that the copy was written out under a most unusual 

 press of business, which scarcely allowed me to finish it in 

 time to send it to you as soou as I had promised. 



Jan. 15, 1808. **• R - D - 



In p. 2, 1. 18, for points to read points nearly to. — p. 4, 

 1. 6, after horns add which are 8° apart.— ib, 1. 32, for first 

 read third.— p. 7, 1. 25, after and add of the.— p. 8, 1. 0, 



for through read near: I. 23, for south-east read south-west : 

 1. 27, after add a changeable star.— p. 9, 1. 13 from bott. 



for 3d read 2d.— p. 10, 1. 7, for the Whale read Aries.— 

 p. 11, 1. 10, for 32° 2' read 33° 2'. 



IV. 



On the Advantages of Grafting Walnut, Mulberry, and 

 Chesnut Trees, By Thomas Andrew Knight, Esq, 

 F.R.S. $** 



JlN the course of very extensive experience in the propaga- Grafts of bear- 



tion of apple and pear trees, I found that the detached parts ing branches 



, n . . do not form 



of the bearing branches of old trees ot those species, when yoU ng trees, 



employed as grafts, never formed what could with propriety 

 be called young trees : the stocks appeared to afford nutri- 

 ment only; and the new plants retained, in all instances, 

 the character and habits of the bearing branches of which 

 they once formed parts; and generally produced fruit the 

 second or third year after the grafts had been insertedf, 



I was therefore induced to hope, that the effects of time Applied to the 

 might be anticipated in the culture of several fruits, the trees speedy pcoduc- 

 of which remain unproductive during many years after they fmits 

 are planted: and that parts of the bearing branches of those, 



detached 



* From the Trans, of the Horticultural Society. Vol I, p 60. 



-}• Columella appears to have known, that a cutting of a bearing branch 

 did not form a young tree ; for speaking of cutting-; of the vine (semina) 

 he says, "optima habentur alumbi*; secundaab humeri*; tertia summi 

 iu vite lecta, qux celerrime comprehend unt, et sunt feraciora, sed et 

 ouarn celerrime senescunt." De Arboribu?, chap. ■). 



