One Method of Materialization and Dematerialization
The test is done by using white silk used to sift gunpowder.
One yard of this silk can be carried in an ordinary thimble, and five yards may be carried in a watch case. A face made of rubber, painted with luminous paint. It is blown up the same as a toy balloon but retains the shape of a face. The whole affair is concealed in a half inch gas pipe running on the stage under the flooring. Assistant works the bellows from behind the scenes. The spirit, (rubber face and silk sack) rises forced up out of the gas pipe end by the air pumped into the silk sack.