Page:Illustrations of Madness.djvu/63

42 The annexed figure of the air-loom, sketched by Mr. Matthews, together with his explanations, will afford the necessary information concerning this curious and wonderful machine.

“a a. The top of the apparatus, called by the assassins air-loom machine, pneumatic machine, &c. being as a large table.

“b b. The metals which the workers grasp to deaden the sympathy.

“c. The place where the pneumaticians sit to work the loom.

“d. Something like piano-forte keys, which open the tube valves within the air-