234 
Wisconsin Academy of Sciences , Arts and Letters . 
To this value the following correction was added: If A B, in Fig. 1 ? 
is the length of one of these divisions of the magnet, and C D a part of 
the distribution curve supposed to be straight, then the area ABDC 
represents the number of lines of induction issuing from the magnet 
in the length A B. Let F be the center of gravity of the triangle 
C E D. It is evident that the portion of the distribution represented 
by the triangle should be multiplied by the abscissa of F, not of H, 
therefore a correction 
2 area of C E D X G H 
was added to the summation already given. From this calculation the 
following results were obtained: 
Magnets. 
A. 
B. 
m 14 . 
Moment at 14° C. 
2298 
2060 
Moment at 99.°5 C... 
2140 
2018 
. 
■M-14 -M-99.5 • • • 
Loss. 
158 
142 
M i4 M 9 9 5 . . . 
Proportional loss. 
0.0687 
0.0689 
Ml 4 
Intensity at 14° C... 
322 
289 
Intensity at 99.°5 C. 
300 
283; 
