Spencer, Herbert . <br/><br/>
Essays: Scientific, Political & Speculative /  Textual Documents 
Herbert Spencer. 
 - 1st ed / 
 - London :  Williams & Norgate ,  1901. 
 - 506p. ;  24 cm. 
 - Vol I- 
<br/><br/><label>Subjects--Index Terms: </label>Pure science T/G-Pure Science 
<br/><br/><label>Dewey Class. No.: </label>504  / sp 33 Es