McLennan, John Cunningham,  1867- <br/><br/>
Report on some sources of helium in the British empire, 
by J. C. McLennan and associates.  Pub. by permission of the British Admiralty. 
 - Ottawa,  J. de L. Taché, printer,  1920. 
 - viii, 72 p.  4 fold. maps (in pocket)  25 cm. 
<br/><br/> At head of title:  Canada.  Department of mines. 
<br/><br/><label>LCCN: </label>gs 20000378  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Helium.
<br/><br/><label>LC Class. No.: </label>TN26  / .A35 no. 31