_Thirdly_, the phenomena presented by Eusapia Palladino completely prove the reality of such a "fluid" to my mind, without any other proof being necessary. _Fourthly_, the impression said to be left in or upon objects or houses, and the phenomena of "psychometry" seem to indicate the same thing. _Fifthly_, the recent reinforcement of the evidence in favour of the human "aura" strongly supports the same view. _Sixthly_, the French experiments in "exteriorization of sensibility," "thought-photography," "radiographs," etc., point to the same conclusion. _Seventhly_, the successful experiments conducted by Professor Alrutz and others with his instrument--which is thought to register "will power"--is a long step towards recognizing the existence of a nervous, vital energy, which can at times be externalized and made to pass into and "charge" an inanimate object. _Finally_, the facts of materialization and kindred phenomena, which find so ready and complete an explanation on this theory. For these and other reasons, therefore, it seems fairly certain that there is a nervous "fluid" which can at times be externalized beyond the normal bodily limits, which is operative in mesmeric "passes," and which plays so large and hitherto unsuspected a part in the production of many physical and psychical phenomena. 15. As we know, it is this "fluid" which is drawn upon, so it is said, by materializing mediums for the production of their phantoms, and the following interesting experience seems to confirm this view. I quote _verbatim_: