Vénus - 1761 - Constantinople (actuellement Istanbul, Turquie) - James Porter - nationalité britannique

Observation of the same Transit of Venus made at Constantinople : By his Excellency James Porter, Esq ; his Majesty's Ambassador there : In a Letter to George Amyand, Esq.

Philosophical Transactions Giving Some Account of the Present Undertakings, Studies, and Labours, of the Ingenious, in Many Considerable Parts of the World, vol. LII, part I, For the Year 1761, London, 1762, p. 226.

Texte imprimé en anglais.

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