The American Geologist, Vr)L. XXXIII. 
Pt,ate XXIV. 
Fig. 3. Thin Section of Canjptonyte as seen under a microscope 
between crossed nicols X 35 (Kossland 105). 
Thin Section of Camptonyte as seen under a microscope 
between crossed nicols X 35 (Rossland 100). 
