Newcomb, Simon,  1835-1909. <br/><br/>
On the general integrals of planetary motion, 
by Simon Newcomb. 
 - [Washington,  Smithsonian Institution,  1874] 
 - vii, 31 p.  33 cm. 
 - Smithsonian contributions to knowledge. [vol. XXI, art. 3] Smithsonian Institution publication 281. .
<br/><br/><label>LCCN: </label>s  13000087  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy.<br/>Perturbation (Astronomy)
<br/><br/><label>LC Class. No.: </label>Q11  / .S68