The ready observator, or, An infallible method for determining the latitude at sea, by altitudes of the sun, at any time of the day, either fore-noon or after-noon, independant of a meridional observation : the whole renderd peculiarly easy for practice, and annexed with a compleat and correct sett of all the necessary tables /
| Main Author: | |
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| Format: | Book |
| Language: | English |
| Published: |
[London] :
Printed for J. Mount, T. Page and W. Mount, on Tower Hill,
1778.
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| Edition: | The second edition, with an appendix. |
| Subjects: |
| Item Description: | Cover title. The titlepage is engraved. |
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| Physical Description: | iii, 86 pages : tables ; 24 cm |