4to. 3¾ pp. on bifolium.
Report to the Laboratory Committee of the London Institution, stating among his laboratory purchases "an apparatus for obtaining pure oxygen and hydrogen by electrolysis": "In the department of research I am happy to have to report a discovery which has attracted some attention among men of science & which will I trust do no discredit to the Laboratory of London Institution viz. the Gas Battery. Since the first paper upon this novel voltaic apparatus was published I have continued my experiments on the subject & have forwarded to the Royal Society a paper containing an account of them in which the Rationale of the action of the battery is inverstigated & its application to eudiometry detailed [...]".
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