Venable, Francis Preston,  1856- <br/><br/>
A brief account of radio-activity / 
by Francis Preston Venable 
 - Boston :  D. C. Heath,  1917 
 - vi, 54 p. :   p. ill., pl., diagr. ;  19 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radioactivity
<br/><br/><label>Dewey Class. No.: </label>539.752