The Application to Gravity Determinations of a Correction for the Density of the Local Rocks. 
NOTES ON GRAVITY DETERMINATIONS, 
63 
Departures from mean of quantities in 
columns 2, 3, 4, 5, and 6. 
2 a. 3a. 4 a. 5 a. 6a. 
(y frHairH<MC©t'.I>-rHt^CT> 
cgOrHOOOi-HrHOOrH 
goooooooooo 
(§“+ 1 I++ l/f I++ 
600’ 
' •NOIhhcOh^tHOiO i 
g O O O O O O O O T-H o 1 
(?+++++++ f f r 
.054 
joohhoocshcooo 
§OHOHHOOOHTt( 
gOOOOOOOOOO1 
$ frfr ffr+++ 
.010 
^CiGOOfMTHOOGO^OOT-l 
SOOOrHOOr-IOOC^ 
gOOOOOOOOOO 
(§*+1 '++ r + \ r r 
600’ 
^lO^NHCOOWNOiC 
=2 io eo co >o co co ^ co 
gOOOOOOOO—irH 
§+++++++ fr r 
.064 
6. 
Gravity as 
per column 
3, cor¬ 
rected for 
sediment¬ 
ary rocks. 
(Column 4.) 
.COCOrHt^C500OqTHG<lTH 
gscOTnOCOiOTtiCOCOC^GO 
i—H rH r*H rH rH nH 
5^0 
og 
980.165 
5. 
Gravity as 
per column 
2, cor¬ 
rected for 
sediment¬ 
ary rocks. 
(Column 4.) 
Dynes. 
980.143 
980.119 
980.147 
980.147 
980.142 
980.117 
980.130 
980.052 
979.966 
980.001 
980.096 
'-+3 jjj 02 c3 gq 
o -+J M 
^ o So 
^ !H ^ CD O 
•COiOlOtOCOI^iOCiCOCO 
^OOrHOOOr-HrHCMlO 
gOOOOOOOOOO 
.016 
O 02 
q++++++++++ 
3. 
Gravity 
corrected 
for lati¬ 
tude, alti¬ 
tude, 
and topog¬ 
raphy. 
.0OHO5HMHNICCO00 
co i-l r—1 rH r—1 rH rH rH rH rH rH 
5^0 
980.149 
2. 
Gravity cor¬ 
rected for 
latitude, alti¬ 
tude, topogra¬ 
phy, and 
attraction of 
matter above 
sealevel. 
Dynes. 
980.135 
980.114 
980.132 
980.141 
980.136 
980.110 
980.115 
980.033 
979.940 
979.945 
980.080 
1. 
Station. 
Cleveland. 
Cincinnati. 
Terre Haute. 
Chicago. 
St. Louis. 
Kansas City. 
Ellsworth. 
Wallace. 
Colorado Springs... 
Denver . 
Mean. 
(—Bull. Phil. Soc., Wash.. Vol. 13. 
