1 2 ] 
The roots I have hitherto made nfe of, are thofe of 
the orchis morio mas foliis maciilatis of Parkinfon, the 
cy?toforchis morio mas of Gerard, and the cynoforchis 
major ^ vulgo dog-ftones: though, from a fpecimen 
of the orchis pahnata major mas ot Gerard, which 
you have among the Salep, that root likewife appears 
capable of being made to anfwer the fame purpofes 
as the others. The beft time to gather the roots is, 
when the feed is formed, and the ftalk going to tall ; 
for then the new bulb, of which the Salep is made, 
is arrived to its full fize, and may be known from the 
old one, whofe tlrength is then fpent by the pre- 
ceding germination, by a white bud rifing from the 
top ot it, which is the germ of the plant of the fuc- 
ceeding year. This new root, being feparated from 
the ftalk, is to be wadied in water, and a fine thin 
fkin, that covers it, to be taken off with a fmall 
brulh ; or, by dipping in hot water, it will come off 
with a coarfe linen cloth. 
When a fufficient quantity of the roots is thus 
cleaned, they are to be fpread on a tin plate, and let 
into an oven, heated to the degree of a bread-oven, 
where they are to remain fix, eight, or ten minutes ; 
in which time they will have loft their milky white- 
nefs, and have acquired a tranfparency like that of 
horn, but without being diminiflied in fize. When 
they are arrived at this ftate, they may be removed to 
another room to dry and harden, which will be done 
in a few days ; or they may be finifiied in a very flow 
heat, in a few hours. I have tried both ways with 
fuccefs. 
The orchis’s above-mentioned grow fpontaneoiilly 
in this part of the country, and throughout the whole 
kingdom. 
