I began to hum a low, monotonous tune, and one by one the others joined in the refrain; soon the psychic's breath became labored, and in the pauses of the song she moaned. At length she drew her hands as far away from Miller's and mine as the threads would permit, thus breaking the circuit. "She is in trance," I reported. "Now we have nothing to do but wait. You may say anything you please, or tell stories or sing songs, only don't argue. We will remain as we are for a while, and if the 'guides' are dissatisfied, they will order a change. Generally speaking, the 'controls' are very notional, and when we get into full communication with 'them' the entire present arrangement may be broken up. The theory is that all success is due to the co-operation of those 'on the other side.'" "It looks to me like a plain case of hypnotism from this side," remarked Harris. "Aren't there any fixed rules to the game?" asked Howard. "After many years' exhaustive study of these antic spirits (approaching them always from the naturalistic side), Maxwell deduces certain helpful rules: 'Use a small room,' he says, 'and have it warm. Medium and sitters must not have cold hands or feet.'" "I can understand the psychic having cold feet now and then," interjected Harris. "Maxwell finds dry air and clear weather most favorable; rainy and windy weather often cause failures. There seems to be some connection with the electrical condition of the atmosphere. After proving that a white light deters phenomena, he uses green, violet, or yellow screens for his lamps. 'Any kind of a table will do for the raps, or for levitation,' he says, 'but one with a double top seems to give best results.' His sitters use wooden chairs with cane seats, and my own experience is that a bare floor helps. He especially directs that the guide be consulted--'let the phenomena come as spontaneously as possible,' he adds." "Does he find this sandwiching of the sexes helpful?" "Yes. He says six or eight people, men and women alternating, make the best circle. 'Take things seriously, but not solemnly,' he advises. 'Don't argue; address the "control," and follow his advice. Avoid confusion by electing a director and asking for only one thing at a time. Keep the same people in the group for at least six sittings. Sit in a circle and touch hands. Be patient and good-tempered. A worried, irritated, sullen medium is a poor instrument. Finally'--and this is most important--'don't overwork the medium.' And with this important statement he ends: '_I am persuaded of the absolute harmlessness of these experiments, provided they are properly conducted._'" "I am glad to know that," said Mrs. Quigg. "After seeing Mrs. Harris's trance, I was in doubt."