Catalogue of apparatus, to illustrate magnetism, galvanism, electrodynamics, electromagnetism, magno-electricity . Fig. Fig. 122. Upright Axial Engine. Price $ 126. Small Electro-Magnet. Price 7<3 cts. to $ OF APPARATUS. 25

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Keywords: ., bookautho, bookcentury1800, bookdecade1850, bookpublisherbostonsn