wax. It is therefore evident, that by’ the Just, the ‘same, as -spinning on. far, however, as they will Jump and chatter, or spring, friction of the glaés'and of the wax, two slinilar but the. face plate,’ Tripoli, chalk, ‘and made bad:work. ~The tool is so easily made that opposite powers are… … asses through and screws: into the disk;-a small moreover, that.it is: vitreously: electrified, sinee:s xhibited. if an exelted ae tube,—Miler,
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