fine silken thread. The glass stands on a wooden support, below which is a coil of copper wire, which, however, is not connected with any battery or other apparatus, and merely serves to condense the current. Below the needle, inside the glass, there is a circular card divided into degrees to mark the action of the needle. Two of these instruments are placed side by side, but in no way connected, and the experimenter then holds out the fingers of both hands to within about an inch of the glasses. According to the theory, the current enters at the left hand, circulates through the body, and passes out at the right hand, that is to say, there is an indrawing at the left and a giving-out at the right, thus agreeing with Reichenbach's experiments on the polarity of the human body.

I must confess that, although I had read Dr. Baraduc's book, "Les Vibrations Humaines," I approached the instrument in a very sceptical frame of mind; but I was soon convinced of my error. At first, holding a mental attitude of entire relaxation, I found that the left-hand needle was attracted through twenty degrees, while the right-hand needle, the one affected by the out-going current, was repelled through ten degrees. After allowing the instrument to return to its normal equilibrium I again approached it with the purpose of seeing whether a change of mental attitude would in the least modify