Gregory, Joshua Craven,  1875- <br/><br/>
The scientific achievements of Sir Humphry Davy/ 
by Joshua C. Gre gory. 
 - London:  Oxford University Press, H. Milford,  1930. 
 - vii, [1], 144 p. :  front. (port.);  19 cm. 
<br/><br/><label>Subjects--Personal Names: </label><br/>Davy, Humphry, Sir,  1778-1829 
<br/><br/><label>Dewey Class. No.: </label>540.92