21 
“Where lime-rubbish of old buildings cannot be easily got, 
take pounded chalk, or common lime, after having been slaked 
a week at least.” 
“As the growth of the tiee will gradually affect the plaster, 
by raising up its edges next the bark, care should be taken, 
where that happens, to rub it over with the finger when occa- 
sion may require (which is best done when moistened by rain), 
that the plaster may be kept whole, to prevent the air and wet 
from penetrating into the wound.” 
“WILLIAM FORSYTH.” 
“ Sworn at the Land Revenue Office, in Scotland Yard, the 
Eleventh Day of May, 1781, before Us, 
Charles Middleton. 
John Call. 
John Fordyce.” 
This Document, verified as above, became the property of 
the public. Subsequently, Forsyth found that his Composition 
could be used more advantageously in a liquid form, and he 
published the following “Additional Directions for making and 
using the Composition.” 
“To the foregoing directions for making and applying the 
Composition, it is necessary to add the following.” 
“As the best way of using the Composition is found, by ex- 
perience, to be in a liquid state ; it must, therefore, be reduced 
to the consistence of a pretty thick paint, by mixing it up with 
a sufficient quantity of urine and soap suds, and laid on with a 
painter’s brush. The powder of wood-ashes and burnt bones 
is to be applied as before directed, patting it down with the 
hand.” 
“When trees are become hollow, you must scoop out all the 
rotten, loose, and dead parts of the trunk till you come to the 
solid wood, leaving the surface smooth; then cover the hollow, 
and every part where the canker has been cut out, or branches 
lopped off, with the composition ; and, as the edges grow, take 
care not to let the new wood come in contact with the dead, 
part of which it may sometimes be necessary to leave ; but cut 
out the old dead wood as the new advances, keeping a hollow 
between them, to allow the new wood room to extend itself, and 
thereby fill up the cavity, which it will do in time, so as to make 
as it were a new tree. If the cavity be large, you may cut 
201. AUCTARIDM. 
