Machin, James Stewart,   1893- <br/><br/>
Effect of fluorspar on silicate melts with special reference to mineral wool, 
by J.S. Machin and J.F. Vanecek. 
 - Urbana, Ill.,  1940. 
 - 15p.  incl.tables,diagrs.  25cm. 
 - Illinois.  State geological survey.  Report of investigations  no. 68 .
<br/><br/> At head of title: State of Illinois ... Department of registration and education ... Division of the State geological survey ...  Printed by authority of the state of Illinois. 
<br/><br/>Bibliography: p. 15. 
<br/><br/><label>LCCN: </label>gs 40000340  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fluorspar.<br/>Mineral wool.
<br/><br/><label>LC Class. No.: </label>TN948.F6  / M3