Harker, Alfred  1859-1939 <br/><br/>
Petrology for students :  an introduction to the study of rocks under the microscope / 
Alfred Harker. 
 - 8th ed. revised. 
 - Cambridge:   University Press,   1954.  
 - viii, 283 p. :  ill. ;  19 cm. 
 -  38 .
<br/><br/> First edition 1895. 
<br/><br/>Includes bibliographical references (p. viii) and index (p. 279-283). 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petrology
<br/><br/><label>Dewey Class. No.: </label>552.07