Scope and Contents Tabulated observations for the voyage, including records of the time by the watch or timekeeper, the apparent time, observed altitudes and lunar distances, estimates of latitude and longitude, magnetic variation, barometer and thermometer readings, and additional remarks. Reference is often made to the instruments used (including instruments by John Dollond, Jesse Ramsden, John Bird and Gowan Knight, and timekeepers by Larcum Kendall), and who made the observations (including Cook,...

Scope and Contents

Preceded by a note on setting up the observatory and on taking the observations [RGO 14/60: 14v] and followed by a table of comparisons of the timekeepers and clocks; signed by Captain Cook and James King. The remainder of the volume is blank.

Scope and Contents Daily observations of the going rate of the two watches during the voyage, with signatures from each of the three keyholders, William Wales, Captain James Cook, and First Lieutenant Robert Palliser Cooper (sometimes signed instead by Charles Clerke, Joseph Gilbert, or Richard Pickersgill). The rates are recorded alongside the temperatures inside and outside the cabin and comments on any difficulties with proceeding, and on periodic comparisons made between the watches and either the...

Scope and Contents

Observations made on board HMS Resolution during her passage to the South Seas on the expedition led by Captain James Cook.

Scope and Contents

These include daily observations; observations of the moon’s distance from the sun; observations on the dip of the magnetic needle; observations for the variation of the compass; observations on the tides; observations for the going of the two clocks; observations for the going of Mr Kendall’s watch; and observations for the latitude of Point Venus.

Scope and Contents

These include daily observations; Azimuths of the sun; lunar observations; observations for the line of collimation of the quadrant; observations for the latitude of Point Venus by Hadley’s Quadrant; observations for the dip of the needle; observations for the going of the clock; observations for the going of Mr Kendall’s watch; and observations for the latitude of Point Venus.

Scope and Contents From the Series: The first part of collection is comprised of papers concerning the internal affairs of the Board of Longitude, including the granting of awards, accounts, minutes, committee papers, petitions and memorials, the loan of instruments, publications and the payment of staff. These are followed by a wide range of papers relating to the Board's work, concerning clocks, chronometers and other instruments; longitude and latitude; magnetic variation; schemes and inventions; tables; pendulum...

Scope and Contents

Comparison of Harrison 4 and Kendall I from 19 March 1770 until 15 February 1773, when Kendall I was not used. John Arnold's watch was used as a comparison from 27 July to 13 December 1774, and Kendall I was used once more from 1 August 1775. The Harrison 4 observations end on 1 September 1775. Kendall I and III are compared for 22 April - 11 June 1776.

Scope and Contents

Observations and comparisons during the trials of John Harrison's chronometers (H1, H2, H3 and H4) and Kendall I, with mean solar time, 1766-1767, and the rating of the Royal Observatory transit clock, 1771. The volume is comprised largely of tables of measurements, with some descriptions of how the results were achieved.