Putnam — Results of Pendulum Observations. 189 



and effect, that is, should the load accumulate to a certain 

 extent before the sinking occurred because of the partial 

 rigidity of the crust or some other retarding cause, we would 

 again expect to find gravity in excess, but only to a small 

 amount. It is of interest, therefore, in this connection to 

 examine the gravity residuals at the four southern stations 

 (differing as they do but little in latitude) as given in the last 

 two columns of the table. The minus sign indicates a defect 

 of gravity as compared with that given by the theoretical 



Deposition area of Gulf of Mexi 



J.B.Torbert 



Stations: N. 0., New Orleans; G-., Galveston; A., Austin; L., Laredo. 



formula used, but it is only the comparative values between 

 the coast and interior stations that need be considered here. 

 There is practically no difference in the results for the two 

 coast stations, New Orleans and Galveston. With Bouguer's 

 reduction, gravity at the coast stations, however, is apparently 

 about '030 dyne greater than at the interior stations, but this 

 is probably due to the fact that the interior stations are more 

 elevated, as negative residuals almost invariably appear in ele- 

 vated regions with this method of reduction. With Faye's 

 reduction, gravity at the coast stations is *017 dyne greater than 



