14 On the Method employed at Fex and Tetuan 
tion impracticable, but may at the fame-time alter its 
effence fo completely, as that it can no longer appear in 
the ftate it otherwife might have been found in, had the 
operation been better conduéted, or in the way they do 
here. A very few trials, however, would much better cer- 
tify this than all I can pofibly fay on the fubjeét, or, in 
fact, than all the reafoning 1 in the world. Therefore, as to 
my own particular opinion of the flavour and quality of the 
’ rofes at home being equal, if not fuperior, to that of thofe in 
this country, I may be entirely filent; the rules and reafon~ 
ing in chemiftry, though ferving gr die to enlarge and in- 
prove our underitanding, being what of themfelves can never 
be depended upon till confirmed by faéts and experiments ; 
where many things often turn out very different from what, 
from our beft and moft plaufible arguments, we had fie 
greateft reafon to expect. Or, if it fhould be found to be 
really true, what I have often heard afferted, by thofe how- 
ever who had it only from others, but not of their own par- 
ticular knowledge, that, in diftilling their oil of rofes at the 
places where they make it the beft, they ufe alfo with their 
rofes, fandal wood, and fome other aromatics, no rofes what- 
foever, it is plain, could ever of themfelves be made to afford 
a like oil, nor without fuch an addition as they employ. A 
circumftance, by the bye, that might poffibly eafily be cer- 
tified by fome one of the many ingenious corre{pondents of 
the Society who may happen to refide where it is made; and 
a knowledge of the real truth of it would certainly be of ufe. 
HI. On the Method employed at Fex and Tetuan to prepare 
thofe Goat Skins called Morocco. By C. A, Brow $sO- 
NET =, 
f RE fkins, after being flayed from the animals by ftrip- 
ping them off entire, are-immerfed in water for three days: 
they are then expofed to the air, and, when dry, the hair is 
taken off, but imperfe&tly. They are then dipped in flacked 
‘time, and {prinkled over with powdered lime to detach the 
* From the Bulletin des Sciences, No, 23. 
7 fmaller 
