Material relating to experiments designed to measure electromotile forces and electric potential, [1834-1875]
Archive Reference: K/PP107/2/1-7
Entries
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K/PP107/2/1/1-59
Observations upon electromotive force drafted by Charles Wheatstone, consisting of proposals for experiments to test the electro-motive force of combinations of electrode elements and electrolytes; the means for transforming weak currents; summary entitled 'new theory of voltaic decomposition', with sketches and diagrams.
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K/PP107/2/2/1-118
Notes compiled by Charles Wheatstone on the measurement of electric potential in an experimental apparatus consisting of rotating electrodes, and in circuits comprising Standard cells and gas batteries; experimental notes on Standard cells applying an apparently innovatory methodology described by the German physicist, Johann Christian Poggendorf (1796-1877).
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K/PP107/2/3/1-172
Working notes and rough drafts of hypotheses, methodological narratives, experimental observations and tables of test results compiled by Charles Wheatstone under the general heading of 'electro-motive forces', relating to the utility of employing combinations of elements in battery electrodes, 1871-1873; correspondence between Charles Wheatstone and Richard William Mellingford Higgs, chemist, on the analysis of acid solutions in battery experiments, with Higgs' experimental observations.
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K/PP107/2/4/1-314
Working notes compiled by Charles Wheatstone comprising measurement of the electro-motive force between electrodes coated with films of sulphides, bromides and iodides, elements including zinc, mercury, cobalt and rubidium, and between electrodes of various alloys; measurement of electric potential of compound circuits; observations on the manufacture of amalgams; calculation of the weights of products of electrophoresis; the phenomenon of 'passivity'; employment in electric cells of peroxides and teroxides.
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K/PP107/2/5/1-278
Papers entitled 'electro-motive forces', comprising experimental notes and test results compiled by Charles Wheatstone, principally relating to the utility of employing combinations of elements in battery electrodes.
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K/PP107/2/6/1-126
Experimental observations compiled by Charles Wheatstone describing the reduction of metals, the measurement of the electrical potential of finely divided and hydrogenized metals, fused anhydrides, and papers marked 'electro-motive forces, miscellaneous', comprising galvanometer test results on Standard cells in a variety of configurations.
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K/PP107/2/7/1-95
Series of notes compiled by Charles Wheatstone describing experiments to test the electrical potential exhibited by different metals, chemical decomposition by means of an electric current, and on the measurement of electro-motive forces under variable laboratory conditions.