The description, use, and excellency of a new instrument, or sea quadrant, invented by Caleb Smith, for taking altitudes of the sun, moon, and stars, from the visible horizon ... without impediment ... from the ship's motion; ... Whereby the latitude at sea may be obtained with greater certainty, ... To which is added, an essay to make this quadrant serviceable ... when there is no horizon
| Publication Date | 1740 |
|---|---|
| Remainder | null |
| Extent | 12p. |
| Location | London |
| Publisher | to be had of the inventor, at his office for insuring ships and merchandize; or at the Crown Coffee-House, near Guildhall |
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Sat Sep 30 01:19:49 CDT 2023