hysicists have was made with the apparatus represented in Fig. 4, which copper 3i part8,spelter J part. Medium: Fine silver 15 parts named the magnetic field. The direction of the lines of force copper 4 parts, spelter 1 part. Easy solder: Fine silver 14 Fig. 4. was beautifully shown by means of an… … As the earth itself is a great magnet, lines of force are consists essentially of a copper disk rotated between the The best material for hot beds is horse manure well turned passing out from it in every direction.and we have the means and mixed with about one third its bulk of oak leaves. An-…
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