Herzig, Charles Simon. <br/><br/>
Mine sampling and valuing :  a discussion of the methods used in sampling and valuing ore deposits, with especial reference to the work of valuation by the independent engineer / 
by Charles Simon Herzig and Chester Wells Purington. 
 - 60p. :  ill. ;  25 cm. 
<br/><br/>
<br/><br/><br/>english 
<br/><br/><label>LCCN: </label>14004561  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mine examination.<br/>Mine valuation.
<br/><br/><label>LC Class. No.: </label>TN272  / .H4 
<br/><br/><label>Dewey Class. No.: </label>622.14/HEM