W. H. Sherzer, Photo. 1905
EROSIVE ACTION OF GLACIERS SHOWN UPON QUARTZITE NEAR HEAD OF PARADISE VALLEY
Notice the planing and striating of the upper surface, and the disrupting "plucking" of the massive blocks
A. O. Wheeler, Photo, 1902
THE DEVILLE GLACIER, SELKIRKS, B.C. FROM SUMMIT OF MOUNT FOX
SHOWING FORMATION OF FORBES' "DIRT BANDS"
