Demoor, Jean <br/><br/>
Evolution by Atrophy in Biology and Sociology / 
by Jean Demoor, Jean Massart, Emile Vandervelde 
 - London :  Trench, Trubner & Co.,  1899 
 - 320 p. ;  20 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Evolution (Biology)<br/>Evolution