PROCTOR, R.A. <br/><br/>
The expanse of heaven  A SERIES OF ESSAYS ON THE MONDERS OF THE FIRMAMENT 
PROCTOR, R.A. 
 - NEW YORK  LONGMANS GREEN AND CO.  1911 
 - 305 pages 
<br/><br/><br/>In English 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ASTRONOMY
<br/><br/><label>Dewey Class. No.: </label>NCIII,40(2)  1911