Fig 1 p & The Mezenc’ 
FE rs \ 
1 2 Trachyte and Phonolite _ 
: ee eg 

3 Srachyte slightly Scorthied 
# Trurajte Vesicular Lars 
e] Bed Score — 
6 Base 

<p iy 
ll My 


LALE, Ll Rovab Soc. Trans. Edin Vol. XX 
Fig 2 pll Near Pont de la Beaime 
i A\\\ Us Is\\ Wi i 
Why NNO (gr 
in ANE VAAN eae 
i i \ 7 
@) lupins 
Amorphous with 
Nh 3) masses of Olwine 
SSE i 
T, 
Vi Ly Uf Granite 
Li a Lava more or less 
Colunmnar 
|b Seorve with cecastonal 
; Farwelies 
ce Debris and Sod 

ie Be potato 






fig 3 pl6 Environs f Taujac 
Euplanation A Gress ull Granite veins. B Primitive, 
wih Volcanic Vie C Hill of Sandstone, +++ pols 
marking the continutly of the Sandstone’ —~ Course of 
the Lava 
Wh AX Johnston lit. Law? 
