A geological reconnaissance of the region traversed by the National transcontinental railway between Lake Nipigon and Clay Lake, Ontario, 
by W.H. Collins. 
 - Ottawa,  Government printing bureau,  1909. 
 - 67, 7 p.  illus., II pl. (incl. front.) 2 fold. maps.  25 cm. 
<br/><br/> At head of title: Canada. Department of mines. Geological survey branch ... 
<br/><br/><label>LCCN: </label>gs 10000037 //r87 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Ontario.
<br/><br/><label>LC Class. No.: </label>QE191  / .C64