[ '6o ] 
XIX. RxiraB of a 'Letter from Edward 
Hafted, Efq-, F. R. S. and F. S. A, to 
Dr. Ducarelj concerning Chefnut Frees. 
Dear Sir, 
Read March 8, jsj anfwer to *Mi*. B’s I ft rule — I 
A muft remark, inftances are exceeding 
frequent of woods and coppices breaking off, by a 
fudden change, to other trees, and that where the 
fiutation and ftrata are entirely the fame ; fometimes 
without any mark of divifion, and fometimes with 
a ditch only, an old ftnb for a boundary, or per- 
haps diftinguithed only by the difference in the 
growth of the underwood, or the like. It is a 
known facff, that particular forts of frees have grown 
in large traffs and maftes in a country, which have 
been in fucceeding times almoft extirpated from 
thence, either from others being more diligently en- 
couraged and preferved, or from the prelent deilruc- 
tive method of too frequent cutting them down ; 
and only fcattered ftubs or trees have remained of 
the fort, thinly difperled in woods and hedges. The 
wich, elm, maple, and others, are indigenous trees ; 
and yet feldom, if ever, grow in large maffes, or 
cover confiderable trads of ground; the reafon of 
3 which 
