97 
the particles of magnetic bodies, &c. 
In computing the mean value of p from the different com¬ 
binations of the observations, I, as before, exclude the com¬ 
binations of consecutive observations. 
The values of e“ are computed from the several equations 
of the form (2), by substituting the mean values of M and p ; 
and I thus obtain the mean value of e®. 
The following table exhibits the values of a in the different 
observations, the several values of M and p deduced from the 
different combinations of the observations, and the values of 
6 * derived from the separate observations. 
Table 11 . 
Values of c in 
different ob¬ 
servations. 
Values) a in 
different observa¬ 
tions. 
Values of M determinec 
from different combina¬ 
tions of a , o ,a ,a ,&c 
1 11 in iv’ 
Values of p determined 
from the mean value of H! 
and different combinations 
of a , a , a , &c, 
1 n 111 
Values of £“ 
determined 
from the mean 
values of M 
and p, and 
different va¬ 
lues of a. 
Combinations. 
Values 
ofM. 
Combinations 
Values ofp 
inches. 
C = 2 -C 
1 
a — -2^6500 
i 
a a a 
1 111 V 
24-770 
a a 
1 111 
-0825 
•1255 
c “ 2 0 
11 
a =. -197061 
11 
a a a 
1 111 VI 
24-412 
a a 
1 IV 
-0990 
-1625 
c = rc 
111 
G n *i 17851 
Ml 
a a a 
1 111 vn 
24-022 
a a 
1 V 
-0972 
•1709 
c n i*2C 
IV ^ 
a “ -084819 
IV 
a a a 
1 IV VI 
23*344 
a a 
1 VI 
-0954 
-1409 
c “ I *00 
V 
a zz. *058805 
V 
a a a 
I IV vn 
23-202 
a a 
I Vll 
•0973 
*H 95 
c = 07c 
VI ' ^ 
a zz '037629 
VI 
a a a 
1 V vn 
23-318 
a a 
n IV 
•1195 
•1459 
0 
b 
> 
a — *022459 
vu 
a a a 
11 IV VI 
22-614 
a a 
11 V 
•I 117 
•1573 
CL CL CL 
n IV vu 
a a a 
a V vn 
a a a 
111 V vn 
22-553 
22-878 
22-026 
a a 
n VI 
a a 
n vu 
a a 
111 v 
a a 
111 vi 
a a 
III vn 
a a 
IV VI 
a a 
IV VU 
a a 
V vn 
-II 18 
•1069 
•1266 
-1219 
"1 I 20 
•1002 
•0942 
•0974 
Mean 
23-314 
Mean 
-1052 
•1504 
MDCCCXXVir. 
O 
