Ambrose, John Willis,  1904- <br/><br/>
The magnetometer as an aid in geological mapping, 
by J. W. Ambrose. 
 - Ottawa,  E. Cloutier, printer to the King,  1945. 
 - 2 p. l., 21 p.  illus. (incl. map, profiles, diagrs.)  25 cm. 
<br/><br/> At head of title: Canada.  Dept. of mines and resources.  Mines and geology branch. 
<br/><br/>Bibliographical foot-notes. 
<br/><br/><label>LCCN: </label>gs 45000079  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Magnetometers.<br/>Geology--Maps.<br/>Geology--Québec (Province)--Maps.
<br/><br/><label>LC Class. No.: </label>QE185  / .A43 no. 2