the mean Denjtty of the Earth , 777 
Having now obtained the fums of the fines for the 
feveral quadrants, the next bufinefs is to colledt them 
together, and dedudt the negatives from the affirmatives. 
And this may be done either for each obfervatory fepa- 
rately, or for both together. I fhall do them feparately, 
in order thereby to difcover alfo the ratio of their effects. 
And, firft, for the Southern obfervatory o. 
Alt. 
Affirmatives. 
24*795 N.W.j 
19*792 N.E. J 
24*806 S.W. -> 
29*213 S.E. J 
Negatives. 
3 . . 2*374 S.W. 
4 . . 0*375 S.E. 
5 * • I 3*534 N.W 
6 . . 12*356 N.E 
| Alt. 
^ j Dep. 
98*606 = fum of affirm. 
28*639 — fum of negat. 
28*639 fum, 
69*967 = effective fum of the fines for o. 
Secondly, for the Northern obfervatory p. 
Affirmatives. Negatives. 
1 1.. 25.078 S.W. | Alt 
12. . 20*261 S.E. J 
13 . . 25*637 N.W. 
14 . . 26*161 N.E. 
10 . . 0*090 N.E. J 
15 . . 2*774 S.W. a 
16 . . 5*610 S.E. 
97*137= fum of affirm. 8*49 3 
8*493 = fum of negat. 
88*644 = effedtive fum of the fines for p. 
69*967 = the fame for o. 
158*611= the fum of the fines for both obferv. 
Vo l. LXVIII. 5D From 
