CARNEGIE INST. WASH. PUB. 400— FOLSE 
PLATE 5 
Elev. MAY JUNE 
Intel 
58H0 
JULY AUG SEPT. OCT. 
O 
O 
V 
1 
\ N 
\ \ 
\ X 
\ 
1 
Mayl 
580.37 
MAY JUNE JULY AUG. SEPT. OCT. 
1909 
^ — *^ 
V 11 _, 
s. ' 
N \ 
V \ 
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s V 
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1910 
Elev. 
May 1 
579.59 
MAY JUNE JULY AUG. SEPT. OCT. Elev. MAY JUNE JULY AU G. SEPT. OCT. 
1 
\ 
V> l 
N 
1912 
Elev. 
May 1 
580.86 
MAY JUNE JULY AUG. SEPT. OCT. 
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O 
r 
> 
O 
53 
> 
z 
X 
G 
73 
O 
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10 Z 
P3 
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ac 
w 
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N. ^ 
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S 
l N 
\ 
\ 
>, 
\ 
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1 
Vv 
Elev MAY JUNE JULY AUG. SEPT. OCT. 
May 1 m » x 1 I 1 1 10 
580.31 
"T— — - 1 
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X ' 
v 
v. 
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t 
1913 MEAN 1909-1913 
Accumulated sum of daily weighted mean changes in observed levels corrected for winds 
and barometric effects, inflow, outflow, rainfall on lake surface and run-off into lake 
Accumulated sum of daily evaporation computed from E w =. '<!<■<> e-H.27e[( — — - —2.(11] 
Mass Curves of Computed Evaporation, and of Observed Fall of Surface of Lake Michigan-Huron. 
rLANOCKAPH CO . WASOIMUTOK, O C 
