5 results filtered with: Hadley, John, 1682-1744
- Books
- Online
The nature and use of Hadley's quadrant, with a preface containing the theory, on which that noble and useful instrument is founded. And a description of the nonius.
Date: 1790?]- Books
- Online
Descriptio astrolabii nautici novi a Johanne Hadley, Armig. V. P. R. S. inventi, apti ad observationes syderum altitudinis, vel Angulorum quorumcunque. Annexa sunt praecepta, quibus Observationes illae facilius certiusque a Nautis peragi possint.
Hadley, George, 1685-1768.Date: 1734?]- Books
- Online
Instructions at large, for the use of Hadley's quadrant: wherein are contained the principles on which that most ingeniously contrived, and useful instrument is constructed; together with a description and use of Vermier's, enormously called Nonius's divisions.
Date: 1766- Books
- Online
A description of a new instrument for taking the latitude or other altitudes at sea. With directions for its use.
Hadley, George, 1685-1768.Date: MDCCXXXIV. [1734]- Books
- Online
Remarks on the Hadley's quadrant, tending principally to remove the difficulties which have hitherto attended the use of the back-observation, and to obviate the errors that might arise from a want of parallelism in the two surfaces of the index-glass. By Nevil Maskelyne, F.R.S. Astronomer Royal.
Maskelyne, Nevil, 1732-1811.Date: M.DCC.LXXII. [1772]