When we sat at a large loo table without a cloth, with all our hands upon it, the taps would generally commence in a few minutes. They sound as if made on the under side of the leaf of the table, in various parts of it. They change in tone and loudness, from a sound like that produced by tapping with a needle or a long finger-nail, to others like blows with a fist or slaps with the fingers of a hand. Sounds are produced also like scraping with a finger-nail, or like the rubbing of a damp finger pressed very hard on the table. The rapidity with which these sounds are produced and are changed is very remarkable. They will imitate, more or less exactly, sounds which we make with our fingers above the table; they will keep good time to a tune whistled by one of the party; they will sometimes, at request, play a very fair tune themselves, or will follow accurately a hand tapping a tune upon the table. Of course, the first impression is that some one's foot is lifting up the table. To answer this objection, I prepared the table before our second trial without telling any one, by stretching some thin tissue paper between the feet an inch or two from the bottom of the pillar, in such a manner that any attempt to insert the foot must crush or tear the paper. The table rose up as before, resisted pressure downwards, as if it was resting on the back of some animal, sunk to the floor, and in a short time rose again, and then dropped suddenly down. I now with some anxiety turned up the table, and, to the surprise of all present, showed them the delicate tissue stretched across altogether uninjured! Finding that this test was troublesome, as the paper or threads had to be renewed every time, and were liable to be broken accidentally before the experiment began, I constructed a cylinder of hoops and laths, covered with canvas. The table was placed within this as in a well, and, as it was about eighteen inches high, it kept the feet and dresses of the ladies away from the table. The latter rose without the least difficulty, the hands of all the group being held above it.