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Sydney Observatory.

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Results of astronomical observations made at the Sydney observatory, New South Wales, in the years 1877 and 1878, 1879-81
Cover of Results of astronomical observations made at the Sydney observatory, New South Wales, in the years 1877 and 1878, 1879-81, under the direction of H. S. Russell by Sydney Observatory.

Results of astronomical observations made at the Sydney observatory, New South Wales, in the years 1877 and 1878, 1879-81, under the direction of H. S. Russell

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