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Scientific American, Vol. 79, No. 24 (December 1898) (1898)

leaf 10

An illustration from Scientific American, Vol. 79, No. 24 (December 1898), 1898, leaf 10
mation is obtained from that is well known, but which is still a zoological mys- magic," where the results are obtained by clever tricks. a confederate, who is generally concealed under the tery. There have appeared from time to time before the stage, who has the blackboard in sight and who trans-… … THE FOOT TELEGEAPH. Heller used a system somewhat similar, only ation of the long siphon of the clam. an electro-magnet was used instead of the This singular organ has various offices. It pneumatic piston. is likethe trunk of an elephant, inasumch as it can be termed "operators'' and "subjects,"…

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