Anderson. 
Phil. Trans., A, vol. 208, Plate 25. 
Fig, 1. Tuff-agglomerate, scored by avalanches. 
General view. 
"V 
Fig. 2. Details beyond left corner of Fig. 1. 
Dor /ip 
Fig. 3. Valley of Fdviere Blanche, from near shore. 
Fig. 4. The new Delta at Basse Pointe. 
