From the Unconscious to the Conscious 



Having trained and educated Eva, Mme Bisson 

 has been able during long years of research to study 

 at her leisure this phenomenon whose scientific import 

 has long remained unrealised. Her book is therefore 

 a mine of documentary evidence generously offered to 

 scientific and philosophic minds. 



The work of Dr Schrenck-Notzing is a methodical 

 and complete account of his studies on the same medium; 

 it is drawn up with skill, it is clear, exact, and provided 

 with references; it contains also the record of similar 

 experiments with another medium having the same 

 faculties as Eva. 



Thanks to the complaisance and goodwill of Mme 

 Bisson, I had the honour and privilege of studying 

 Eva with her for a year and a half, at bi-weekly seances, 

 held at first in her house, and afterwards, for three 

 consecutive months, exclusively in my own laboratory. 1 



After my study of Eva, I was able to verify 

 analogous though elementary phenomena in new subjects 

 from whom I endeavoured to induce materialisations. 



I shall now give a synthetic resume of my experiments 

 and records; and it is my own testimony only that I 

 give in this book, a testimony in complete accord with 

 that of a very large number of men of science, chiefly 

 physicians, who are to-day completely convinced of the 

 authenticity of this phenomenon, although for the 

 most part starting from absolute scepticism. 



I have been able to see, to touch, and to photograph 

 the materialisations of which I am about to write. 



I have frequently followed the event from its 

 beginning to its end; for it was formed, developed, 

 and disappeared under my own eyes. However unex- 

 pected, strange or impossible such a manifestation may 



1 The results were the subject of a conference at the College de France, 

 published under the title, La Physiologie dite Super anormale. This will 

 be found, illustrated by 24 photogravures in the Bulletin de I'lnstitut 

 Physiologique of January-June, 1918, published at No. 143 Boulevard 

 Saint-Michel, Paris. Now reproduced in the Appendix, p. 328. 



53 F 



