In the number of the PROCEEDINGS for December, 1905 (Vol. XXXI, No. 4), there was included a paper which, under the title of "A New Method in Nautical Astronomy," gave a description of a new process for deducing hour angle of body, and, therefore, longitude of place, from the altitude of a star situated near the prime vertical by means of tables.
The paper in question was limited to a general account of the principles of the method, with a practical example of its application in the case of the star Antares for latitude 55° S. Now that the tables have been published1 a slightly more detailed description of their construction, and of the objects which it is proposed to accomplish by their aid, may perhaps be acceptable to readers of this journal.
It may be well first to briefly recapitulate the principles on which the method is based.