BULL. GEOL. SOC. AM. 



VOL. 15, 1903, PL. 57 



Figure 1. — Vai.t.ey of the Wallibou river, Saint Vincent. Mat 30, 1902 



Bed of new ash is indicated by the steam rising from it. During the succeeding rainy season 

 almost the whole of this material was removed from the gorge. Dendritic drainage is well indi- 

 cated in the hill slope at the right. 



Figure 2.— New Gorge in Old Tuff Agglomerate Forming the Wall of the Canyon of the 



Rabaka river, Saint Vincent. March 11, 1903 



Old canyon was filled with ash by eruptions of the Soufriere in May, 1902, and the accumu- 

 lated waters of a part of the Rabaka drainage basin cut this new gorge 50 feet wide and 100 feet 

 deep. The new ash here contains numberless bombs. 



VALLEY OF WALLIBOU RIVER AND NEW GORGE IN OLD TUFF, SAINT VINCENT 



