Home » Frederick Thomas POWELL (1806/7 - 1859) & Richard ETHERSEY (c. 1810 - 1857) / Thomas Holloway TWYNAM (1794 - 1869).

Frederick Thomas POWELL (1806/7 - 1859) & Richard ETHERSEY (c. 1810 - 1857) / Thomas Holloway TWYNAM (1794 - 1869).

SRI LANKA – GALLE and SOUTHWEST COAST: Trigonometrical Survey of the West Coast of Ceylon, Executed by order of the Madras Government, By Lieuts. F.T. Powell & R. Ethersey, I.N. Sheet IV. From Point De Galle to Dondra Head by T.H. Twynam, Master Assistant

  • JernejPahor
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  • August 5, 2018
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  Exceedingly rare – one of only 2 known examples - the first publication of the earliest systematic trigonometrical survey of the south-western coast of Sri Lanka, a self-contained section…
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