In the matter of producing physical phenomena the Cooks are a most remarkable family, all three daughters being powerful media, and that without any solicitation on their part. The second one, Katie, is by no means the least powerful of the three, although she has sat more privately than her sister Florence, and not had the same scientific tests (I believe) applied to her. The first time I had an opportunity of testing Katie's mediumship was at the private rooms of Signor Rondi, in a circle of nine or ten friends. The apartment was small and sparsely furnished, being an artist's studio. The gas was kept burning, and before the sitting commenced the door was locked and strips of paper pasted over the opening inside. The cabinet was formed of a window curtain nailed across one corner of the room, behind which a chair was placed for the medium, who is a remarkably small and slight girl--much slighter than her sister Florence--with a thin face and delicate features. She was dressed, on this occasion, in a tight-fitting black gown and Hessian boots that buttoned half-way to her knee, and which, she informed me, she always wore when sitting (just as Miss Showers did), because they had each eighteen buttons, which took a long time to fasten and unfasten. The party sat in a semicircle, close outside the curtain, and the light was lowered, but not extinguished. There was no darkness, and no holding of hands. I mention these facts to show how very simple the preparations were. In a few minutes the curtain was lifted, and a form, clothed in white, who called herself "Lily," was presented to our view. She answered several questions relative to herself and the medium; and perceiving some doubt on the part of some of the sitters, she seated herself on my knee, I being nearest the curtain, and asked me to feel her body, and tell the others how differently she was made from the medium. I had already realized that she was much heavier than Katie Cook, as she felt like a heavy girl of nine or ten stone. I then passed my hand up and down her figure. She had full breasts and plump arms and legs, and could not have been mistaken by the most casual observers for Miss Cook. Whilst she sat on my knee, however, she desired my husband and Signor Rondi to go inside the curtain and feel that the medium was seated in her chair. When they did so, they found Katie was only half entranced. She thrust her feet out to view, and said, "I am not 'Lily;' feel my boots." My husband had, at the same moment, one hand on Miss Cook's knee, and the other stretched out to feel the figure seated on my lap. There remained no doubt in _his_ mind of there being two bodies there at the same time. Presently "Lily" passed her hand over my dress, and remarked how nice and warm it was, and how she wished she had one on too. I asked her, "Are you cold?" and she said, "Wouldn't you be cold if you had nothing but this white thing