OBSERVED at LAKE-ERIE., 63 
Jar as this may appear, it is not more fo than the double 
refraction produced by the Ice-Land cry{tal—The next 
morning Prefque-Ifle was again invifible, and remained fo 
during our ftay at that pofition. Prefque-lle was about 
twenty-five miles diftant, its fituation very low. 
‘The fame evening the wind began to blow brifkly from 
about two points weft of North, and continued to increafe 
till the evening of the 14th, when it was more violent than 
any thing of the kind I had ever been witnefs to before, 
and continued till the evening of the 16th without the 
leaft intermiffion—Our tents were all blown down, and 
we were under the neceflity of fortifying our camp, by 
driving pofts near to each other, firmly into the ground on 
the windward fide, and filling up the vacuities with bufh- 
es in form of an hedge.---Duriny the continuance of this 
wind, we frequently obferved fmall black clouds hanging 
over the lake ;---they had but little velocity, and were 
fometimes exhaufted, and difappeared without reaching 
the thore. 
From the large bodies of timber blown down about the 
Jakes, it appears that hurricanes are not uncommon; 
Coxe obferves in his travelsthrouch Rufiia, that the lakes 
in that country are fubje@t to terrible ftorms.. 
* 
Wo. IX, 
