Facts relating to the Great Lakes. gr 
the lake, as it was too far from Cobourg on the north side, and 
_— appetungie on the Senile side, to attract apt attention. © © 
cag a 
. ers 2. Fall of the. Water of the Lakes. 
“It is well known that the level of Lake Ontario slowly de- 
scended through several months of last year. The collector of 
the port of Genesee, L. B. Langworthy, caused accurate measure- 
ments to be made at the mouth of the river, which have been 
continued by his successor. The level was considerably lower 
last summer than in several years before ; and the level fell till 
the beginning of this year. About the first of March it began 
mi as shown by the ere record from the collector’s 
0 
aie : Feet. Inches. 
1845. June 1, water below top of wha 1 0 
: Sept. 1, 2 1 
eer rn ee er Meee mee nee ee 
eee Oe AEE BRE OR “ Pas ad: : 
ee Te Dec coe eect - 8 iw“ ie Ageeees, 8 
nah, 1846. Jan. 1 ee Karis 73 3  earet 
yRE SS 5 _ Feb. eS 66 i3 REERrs ts 3 le 
. March Ly “ 66 &“ 66 3 a2 
: “ rs Go; “6 2. 9. 
Pit : it <ch ehAle @ SKK D 6 
+ 2ges 21, + gk 73 ‘“ big B20 vB. 
- The melted shows of Marc, and rains since, have made a 
rise of more than a foot. 
The level of the water has been considerably lower whet usual 
in Lake Erie, and at Detroit and in Lake Michigan, also at Niag- 
ara Falls. The same fact is doubtless true in Lake Superior. 
For the same reason has been operating over all the region of the 
¥f _ teat lakes. An uncommon drought for more than half of 1845 
_ €xtended over this whole section. Of course, far less water 
than ts common, was poured into the lakes. The cause of the 
fall j 18 most obvious ; and there can be no necessity for a resort to 
the notion of a powrtdink and periodical rise and fall of these in- 
land | seas, or to a supposition of an actual sinking of the bottom 
of their outlets. While the drought extended over a wide extent 
‘of our country, the mame veers, EA AD rain was abundant in 
the western parts of - | 
: Sree Y. bei 1846. 
