TY - JOUR T1 - Observations on 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; JF - Philosophical Transactions (1683-1775) VL - 52 SP - 226 EP - 226 PY - 1761/01/01/ UR - http://dx.doi.org/10.1098/rstl.1761.0043 M3 - doi:10.1098/rstl.1761.0043 AU - Porter, J. ER -