BULL. GEOL. SOC. AM. 



VOL. 12, 1900, PL. 7 



I'n.i i:k 1.— <;k.\m n: i^iakkv m:ar (.'Uk.kn vii.ik. fiKnu(;i\ 

 Sliuwins: trr.nl.it ion i'v(<\\\ rcsiiliiMl r\:\\ to frt-sli KViiiiitc and illnstriitintr nictli<><l ol' irranitf weutlieiint; 



Figxrt: 2. — (jCi.mkp Slope in Di'.r.r i;ki) plastic Clay dkuivkd i ko.m >I!Ksii (.hamik 



GRANITE QUARRY AND ERODED SURFACE IN RESIDUAL CLAY 



