C 21 3 
Received Oftober 26, 1766. 
II. A Letter to Dr , Watfon, F. R, S. con- 
taining a Defcription of Three Snbftances 
mentioned by the Arabian Phyfecians , in a 
Paper fent from Aleppo, and tranfated 
fro?n the Arabic, by Mr, J. Channing, 
Apothecary, 
S I R, 
Read Jan. 8, A x your delire, I fend you the tranfla- 
1767 ' x\,.tion °f l i le Arabic, and the fpecirnens 
which you faw at my houfe. The pafTages included 
within hooks, with an aflerifm before them, are 
added, to make it more intelligible. I fend likewife 
a copy of the paper which came with the fpecirnens, 
written by a gentleman of the factory at Aleppo. It 
will give me pleafure, if they (hould be thought wor- 
thy of the infpeftion of the Society. 
You will eafily guefs at my view in procuring thefe 
fpecirnens. The Tabafhir, Marnithfa, and Ma- 
miraan are ufed by the Arabian phyficians ; by 
Rhazes particularly; in page 62 (not. 32) page 110 
(not. 4) ; page 146 (not. 6). I have given the bed 
account of each, which I could meet with ; and you 
will fee it differs not much from this paper, which 
came after that book was finifhed and printed off. 
Lad 
