to my place this afternoon."

"Yes, Professor, yes. It is a bargain. I would do anything for
Mrs. Popper--she is a fine woman."

Late that afternoon I rejoined Craig at his laboratory. Signor
Marina had already arrived with a truck and was disposing the
paraphernalia about the laboratory. He had first laid a thick
black rug. Mrs. Popper very much affected black carpets, and I
had noticed that Vandam's room was carpeted in black, too. I
suppose black conceals everything that one oughtn't to see at a
seance.

A cabinet with a black curtain, several chairs, a light deal
table, several banjos, horns, and other instruments were disposed
about the room. With a few suggestions from me we made a fair
duplication of the hangings on the walls. Kennedy was manifestly
anxious to finish, and at last it was done.

After Marina had gone, Kennedy stretched a curtain over the end
of the room farthest from the cabinet. Behind it he placed on a
shelf the apparatus composed of the pendulums and magnets. The
beakers and test-tubes were also on this shelf.

He had also arranged that the cabinet should be so situated that
it was next a hallway that ran past his laboratory.

"To-night, Jameson," he said, indicating a spot on the hall wall
just back of the cabinet, "I shall want you to bring my guests
out here and do a little spirit rapping--I'll tell you just what