Quatre lettres de Gray à Mortimer
Philosophical Transactions of the Royal Society, 1731-1732, vol. 37
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GRAY, Stephen. A Letter to Cromwell Mortimer, [...] containing several Experiments concerning Electricity, p. 18-44
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GRAY, Stephen. A Letter to Cromwell Mortimer, [...] containing a farther Account of His Experiments concerning Electricity, p. 285-291
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GRAY, Stephen. Two Letters to Cromwell Mortimer, [...] containing farther Accounts of his Experiments concerning Electricity, p. 397-407
