BULL. GEOL. SOC. AM. 



VOL. 20, 190S, PL. 39 



Figure 1. — Morne Lenard, Mount Pele 

 Near view of volcanic sand-blast action. The rock is tuff agglomerate 



Figure 2. — Vertical Cliff beside Riviere Seche., grooved obliquely by volcanic Sand-blast 

 VOLCANIC SAND-BLAST ACTION ON MOUNT PELE 



