Clarke, Frank Wigglesworth,  1847-1931. <br/><br/>
The action of ammonium chloride upon silicates / 
by Frank Wigglesworth Clarke and George Steiger. 
 - Washington,  Govt. Print. Off.,  1902. 
 - 57 p. ;  24 cm. 
 - U.S.  Geological survey.  Bulletin  no. 207 .
 - Geological Survey (U.S.).  Bulletin ;  no. 207. .
<br/><br/> Subject series:  E, Chemistry and physics, 36. 
<br/><br/><label>LCCN: </label>gs 05000747  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Silicates.<br/>Rocks--Analysis.
<br/><br/><label>LC Class. No.: </label>QE75  / .B9 no. 207