POSTSCRIPT. 



In Letter IX., section 21 (page 90), I speak of our 

 having annually a crop of timber^ just as we have 

 annually a crop of corn. I might have added that 

 the former has equally with the latter, a moyiey value, 

 which, though it cannot be so quickly realised or so 

 accurately computed, as in the case of corn, may yet 

 be approximatively estimated and shown to form an 

 important item in the yearly rental, and the accruing 

 value, of an estate on which extensive plantations 

 exist. On this subject details of great interest are 

 given by my friend and relative, Robert vSmith, Esq., 

 of Glenmillan, in a paper entitled Report of Plant- 

 ing on the Estate of Balgowan,'' in Aberdeenshire, — 

 for which Report the Highland and Agricultural 

 Society of Scotland (to which it was presented) re- 



