Sap eam VOLUME XII. NUMBER 21- on successively until the whole field is plant- THE Scientific American, ed by the operator simply walking over it. The weight of the operator coming upon PUBLISHED WEEKLY … ous faculties with which the Creator has ing the knuckles to some persons in the house; as in fig. 2, are so arranged as to form a cham- thought proper in his wisdom to endow man they appeared to be charged with electricity. ber or space, F, between them. To the sole will become developed, and the…
Internet Archive · Public domain. Free to use for anything.
