PREFATORY NOTE. 



The researches made at this laboratory and its publica- 

 tions embrace, 



LIVING MATTER ; Its Cycle of G-rowth and Decline in 

 Animal Organisms. 1888. 



PLURICELLULAR MAN; Whence and What is the Soul? 

 1892. 



LONG LIFE ; An Investigation of the Intimate Causes of 

 Old-Aging and Organic Death, with a View to their 

 Alleviation and Removal. 1896. 



NATURAL SALVATION ; The Message of Science ; Out- 

 lining the First Principles of Immortal Life on the Earth. 

 1903. 



