GRAVITY. 



TABLE 1 13. 



In this table the results of a number of the more recent gravity determinations are brought together. They serve to 

 show the degree of accuracy which may be assumed for the numbers in Table 112. In general, gravity is a little 

 lower than the calculated value.for stations far inland and slightly higher on the coast line. 



* In all the values given under references 1-4 gravity at Washington has been taken at 980. 100, and the others 

 derived from that by comparative experiments with invariable pendulums. 

 SMITHSONIAN TABLES. 



103 



