210 



TKOF. T. G. BONNET ON CKYSTALLINE SCHISTS AND THEIR 



Fig. 5.-— Section in Ravine., Veil Oanaria. 

 (Relative thicknesses of the beds uncertain.) 



(f) 



0); 



A. Black-garnet schist. 



B. "Disthene" schist (''Two-mica schist" of Dr. Grubenmann). (2). Thin 



band of same. 



C. Calc-mica schists, marbles left white. (1) forms a small cascade. 



El. Ranch wacke. (3). The breccia of schist-fragments. (4). Thin zone of 



Tariable scbists. 

 G-. Gneiss or Tremola schist. 



Pig. 6. — Diagrammatic interpretation of Section in Ravine, 

 Vol Canaria (fig. 5). 



The letters indicate tlie general position of the beds mentioned in the explana- 

 tion of fig. 5. F. Probable position of more important faults. 



