Heard, Gerald <br/><br/>
Science in the making / 
Heard, Gerald 
 -  Faber & Faber Ltd., London,  1900 
 - p. ;  22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pure sciences
<br/><br/><label>Dewey Class. No.: </label>500 HEA-S