by India. Great Trigonometrical Survey, James Thomas Walker, Charles Thomas Haig, William James Heaviside, James Palladio Basevi, William Maxwell Cambell, George Strahan, William Hammond Cole, J. Eccles, Sir Sidney Gerald Burrard
by India. Great Trigonometrical Survey, James Thomas Walker, Charles Thomas Haig, William James Heaviside, James Palladio Basevi, William Maxwell Cambell, George Strahan, William Hammond Cole, J. Eccles, Sir Sidney Gerald Burrard
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