Pratt, Joseph Hyde,  1870-1942. <br/><br/>
Zircon, monazite and other minerals used in the production of chemical compounds employed in the manufacture of lighting apparatus, 
by Joseph Hyde Pratt, PH.D. 
 - Raleigh, N.C.,  Edwards & Broughton printing co.,  1916. 
 - 120 p.  map, plans.  25 cm. 
 - North Carolina. Geological and economic survey. Bulletin  no. 25 .
<br/><br/><label>LCCN: </label>gs 16000502  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Rare earths.<br/>Lighting.
<br/><br/><label>LC Class. No.: </label>TN490.A2  / P7