Trans. R. S. C, 1889. 



Sec. IV. Plate XVIII. 



;;^r^'^^of?r^% 



^ s 



'^^O- 



Fig. 1.— Butile x 500. 

 Slate from the Spillimichene. 



Fig. 2 Rutile X 500. 



Chlorite Schist— French Creek. 



To illustrate Prof. Coleman's Paper on the Big Bend of the Columbia. 



