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