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 9 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 9 . 
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 
e 1 derived from the separate observations. 
Table II. 
Values of c hi 
different ob- 
servations. 
inches 
C — 2*5 
C - 20 
11 
c =1-5 
111 J 
C = I *2 C 
IV 3 
C — 1*00 
V 
C — 0*7 C 
VI ' 3 
c = O'CO 
VII 
Values) a in 
different observa- 
tions. 
a — *296500 
1 
a — *197061 
II 
a — *117851 
III 
a zz *084819 
iv 
a zz *058805 
v 
a zz *037629 
vi 
a zz *022459 
Vll 
Values of M deterniinec 
from different combina- 
tions of a , a , a , a ,&c 
1 11 111 IV 
Values of p determined 
from the mean value of IV5 
and different combinations 
of a , a , a , &c. 
1 11 in 
Values of e 2 
determined 
from the mean 
values of M 
and p, and 
different va- 
lues of a. 
Combinations. 
Values 
of M. 
Combinations 
Values 0 fp 
a a a 
1 111 V 
24*770 
a a 
1 m 
*0825 
•12 55 
a a a 
1 111 VI 
24*412 
a a 
l IV 
•0990 
•1625 
a a a 
1 111 Vll 
24*022 
a a 
1 V 
*0972 
•1709 
a a a 
I IV VI 
2 3 ’ 3 U 
a a 
1 VI 
•°994 
**4°9 
a a a 
l IV Vll 
23*202 
a a 
1 Vll 
•0973 
•H 95 
a a a 
1 V Vll 
23 *3 1 8 
a a 
11 IV 
•1195 
•H 59 
a a a 
11 IV VI 
22*614 
a a 
11 v 
•1117 
" 1 5 73 
a a a 
11 IV Vll 
22*553 
a a 
11 VI 
•11 18 
a a a 
11 V Vll 
22*878 
a a 
11 Vll 
•1069 
CL CL CL 
111 V Vll 
22*026 
a a 
111 V 
•1266 
a a 
111 VI 
*1219 
a a 
HI Vll 
•1 120 
a a 
IV VI 
*1002 
a a 
IV Vll 
•O942 
a a 
V Vll 
•O974 
Mean 
2 3 - 3 i 4 
Mean 
•IO52 
‘ I 5°4 
MDCCCXXVII. 
o 
