Lepper, George Henry <br/><br/>
From nebula to nebula or the dynamics of the heavens / 
by George Henry Lepper 
 - 4th rev. enl. ed. 
 - Pittsburgh :  Berger Building,  1919 
 - 401 p. ;  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy<br/>Heaven<br/>Nebulae
<br/><br/><label>Dewey Class. No.: </label>520