1.

図書
図書
1. Telegraphic determinations of longitude made in the years 1888 to 1902
Royal Greenwich Observatory
出版情報: Edinburgh : Printed for His Majesty's Stationery office, 1906
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2.

図書
図書
2. Temperature of the air as determined from the observations and records of the fifteen years 1891 to 1905, made at the Royal Observatory, Greenwich
Royal Greenwich Observatory
出版情報: Edinburgh : Printed for His Majesty's Stationery office, 1906
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