. 
348 R. FE. Browne—Becker’s Theory of Faulting. 
ship to the luminosity of the color, but they are independent 
f the peculiarities of individual eyes and they are in this re- 
spect a better measure of the brightness of the color. 
University of Kansas, July 12, 1884. 
Art. XLIT.—A Criticism of Becker's Theory of Faulting; by 
Ross E. Brownz, M. Tech. Soc. 
[Read July 11, 1884, before the Technical Society of the Pacific Coast. |* 
oint for an examination of the observed conditions. It 1s 
shown in Chapter IV that if a country divided like the Com- 
stock area into parallel sheets experiences a dislocation on one 
of the partings under a compressive strain equal at each part- 
ing, a vertical cross-section will show a surface line represented 
by two logarithmic equations.” 
“ Where a fault of the class under discussion has occurred, 
and where the resulting surface has not been obscured by deep 
erosion, the original surface can be reconstructed or caleu- 
lated, and the amount of dislocation determined.” 
“The theory, though worked out independently of the Com: 
* See “‘ Monographs of the U. 8. Geological Survey, 1882;” vol. iii, on the Com- 
stock Lode, etc., by George F. Becker; chapter iv, on Structural Results of Fault- 
ing. 
