PREFATORY NOTE. 



The researches made at this laboratory and its publica- 

 tions embrace, 



Living Matter ; Its Cycle of Cirowth and Decline in 

 Animal Organisms. 1888. 



Pluuicellulak 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. 



