yi PREFA CE. 



Herbert Spencer, has been permitted to see the origi- 

 nal documents which show that the theory of Evolu- 

 tion as a whole; i. e., as dealing with the non-living, 

 as well as with the living, contents of the Universe, 

 was formulated by Mr. Spencer in the year pre- 

 ceding the publication of the Origin of Species. 



ROSEMONT, TUFNELL PARK, LONDON, N., 



i4th December, 1896. 



