Weeks, Mary Elvira,  1892- <br/><br/>
Discovery of the elements / 
Mary E. Weeks. 
 - 7th ed. 
 - Easton :  Jouranal of Chemical education,  [1968]. 
 - x, 896 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemical elements.<br/>Chemists.
<br/><br/><label>Dewey Class. No.: </label>546