BULL. GEOL. SOC. AM. 



VOL. 23, 1911, PL. 17 



FlGL'RK 1. "IvAKING" IS HERE I'KONOUNCEU 



Figure 2. — Irregll.vr Acclmil.vtions oe W.v.sie that ii.w i; hken \vAsiii;it i>o\vn o\ i;k 



THE SlDEHlIX 



EROSION PHENOMENA ON A CHARACTERISTIC SLATE-PHYLLITE SIDEHILL 



