Proctor Mary <br/><br/>
Comets their nature, origin and place in the science of astronomy 

 -  1937 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>38498 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Astronomy<br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>B952, G7