[ 8i ] 
tion, of a rich balfamic quality, and capable of pro- 
ducing a rich and generous blood. It is likewife a 
great prefervative to be under no apprehendon, and 
to guard as much as podible againd difmal thoughts 
and imaginations upon fuch occafions. 
Thus, Sir, I have laid before you, in a few words, 
all that occurs to me upon the fubjecdj and as mod; of 
the examples related happened in your own time, and 
are confident with your memory and knowledge, I 
hope you can bear witnefs to the truth of the fadts, 
if you think proper to prefent them to the Royal 
Society j and if not, you may difpofe of them as you 
pleafe, for I wrote them in obedience to your dehre, 
and to give you an evident proof of the profound re- 
fpecd, with which I am. 
Conftantinople, 
St. George's day, 
i? 6 3- 
Sir, 
Your mod obedient 
humble fervant, 
Mordach Mackenzie. 
N 
174S 
Vol. LIV. 
M 
