Scientific papers 
 <The> Harvard classics.  v. 30 

 - New York:   P. F. Collier,   1956 
 - 351 p.  ilus. 
<br/><br/> Edited by Charles W. Eliot, LL. D. 
<br/><br/>Contenido : Physis. Chemistry. Astronomy. Geology 
<br/><br/>1956 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ASTRONOMIA<br/>FISICA<br/>GEOLOGIA<br/>QUIMICA
<br/><br/><label>Dewey Class. No.: </label>BMG-BANT COL 081 SCIs