Warren, Henry White,  1831-1912 <br/><br/>
Recreations in Astronomy :  With Directions for Practical Experiments and Telescopic Work  [electronic resource] / 
Henry White Warren 
 -  Project Gutenberg,  2005 
 - Project Gutenberg  15620 .
<br/><br/> Public domain in the USA. 
<br/><br/>Electronic text 
<br/><br/><label>Subjects--Index Terms: </label>Astronomy 
<br/><br/><label>LC Class. No.: </label>QB