Johnstone, Sydney J. <br/><br/>
The rare earth industry :  including the manufacture of incandescent mantles, pyrophoric alloys and electrical glow lamps / 
Sydney J. Johnstone 
 - London :  C. Lockwood,  1918 
 - xii, 136 p. :  ill.. ;  26 cm. 
 - Manuals of chemical technology ;  no.2 .
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Rare earths<br/>Radioactivity
<br/><br/><label>Dewey Class. No.: </label>546.6