



Produced by Emmy, Darleen Dove and the Online Distributed
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THE TELEPHONE




By Professor A. E. Dolbear


_THE TELEPHONE_

With directions for making a Speaking Telephone Illustrated 50 cents


_THE ART OF PROJECTING_

A Manual of Experimentation in Physics, Chemistry, and Natural History,
with the Porte Lumiere and Magic Lantern New Edition Revised Illustrated
$2.00


_MATTER, ETHER, AND MOT