Tyrell, Richard, c1716 - 1766 (Rear-Admiral Royal Navy)
Person
Found in 2 Collections and/or Records:
Item
Celestial observations made on board His Majesty's ship the Princess Louisa, under Admiral Tyrell, 1763-09-20 - 1763-11-08
Item
Reference Code: GBR/0180/RGO 4/321: 1-7r
Scope and Contents
The observations include mathematical equations and methods for finding the inclination of the ecliptic to the horizon [RGO 4/321: 1v-2v]; details of how the observations were taken and with what instruments [RGO 4/321: 3r]; and a log of the observations covering the period 20 September-18 October 1763 [RGO 4/321: 3r-7r]. For a log of the observations of 19 October-8 November, see [RGO 4/321: 38v-40v].
Dates:
1763-09-20 - 1763-11-08
Conditions Governing Access:
From the Management Group:
Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).
Item
Journal of a voyage from England to Barbados in his Majesty's ship Princess Louisa, under Captain Norwood and Admiral Tyrell, 1761 - 1764
Item
Reference Code: GBR/0180/RGO 4/321: 7v-43r
Scope and Contents
The journal covers the period 23 February-7 November 1763 and consists of daily tabulated log entries showing the course of the ship and meteorological conditions on the voyage.A set of additional pages is loosely inserted [RGO 4/321: 14-20], showing a sketch of an unnamed island, possibly Barbados [RGO 4/321: 14], and various computations [RGO 4/321: 15-20] including comparisons of observations from voyages of 1761-1764 to ascertain errors in the quadrant [RGO 4/321: 15]; observations...
Dates:
1761 - 1764
Conditions Governing Access:
From the Management Group:
Unless restrictions apply, the collection is open for consultation by researchers using the Manuscripts Reading Room at Cambridge University Library. For further details on conditions governing access please contact mss@lib.cam.ac.uk. Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (www.lib.cam.ac.uk).