By Dr. Noehden. 



2«5 



fruit, future observation may perhaps be able to deeide. 

 If we were to suppose the quickness of the sap's motion to 

 be in fault, it might appear, that owing to a disproportionate 

 activity, time was not allowed for the separation and de- 

 composition of those particles by which the fruit is formed. 

 Some circumstances seem to point out the abundance of 

 the sap as the cause which is to blame ; for several of the 

 remedies above-mentioned are directed against this fault, 

 and are said to be efficient to the purpose of fertility. It 

 may be added, that transplanting is beneficial to many 

 vegetables, besides trees, and improves their fecundity and 

 good quality ; and this is most readily accounted for by a 

 modification of the growing principle thus brought about. 

 Moreover, it is sometimes found, that by confining the 

 roots, for example, by narrow vessels, or by what is com- 

 monly called under-potting, the plants prove more fruitful ; 

 continued observation and attention may, at last, bring us 

 to satisfactory results. 



In adverting to the particular method, practised and re- 

 commended by the author before us, let me remark, that 

 his practice of ringing trees, coincides exactly with that 

 described by John Williams, Esq. in a Paper read before 

 this Society, May 3d, 1808, and printed in the first Volume 

 of our Transactions, page 107. Mr. Williams does not call 

 it ringing the bark, but making annular excisions in the bark, 

 which is the same in meaning. Both, however, follow nearly 

 the same plan, in cutting circles on the bark ; with this dif- 

 ference, that Mr. Williams has only applied the opera- 

 tion to Vines, and Mr. Hempel to several other sorts of fruit- 

 trees, though the former intimates, that he thinks it may be 



