Abstract
THE present work is a continuation of the previous volume published in 1933, which contained certain ephemoral data up to 1940; it extends theso from 1940 to 1960. The general arrangement is the same as in the first volume, but certain alterations have been introduced which add considerably to the convenience of the tables. As computing machines will be used almost entirely in connexion with the work, the logaritlim of the radius vector has been omitted and a column giving the Julian date has been inserted. Planetary Co-ordinates for the Years 1940–60 referred to the Equinox of 1950·0 Prepared by H.M. Nautical Almanac Office. Pp. xvi + 150. (London: H.M. Stationery Office, 1939.) 17s. 6d. net.
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