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Harrison, John, 1693 - 1776 (horologist)


Found in 1 Collection or Record:


Miscellaneous observations made in Barnet, 1758

Reference Code: GBR/0180/RGO 4/1: cover (inside)-6
Scope and Contents From the File: A rough copy of observations of major stars made in 1758 and on a voyage of 1764. The volume includes adjustments to the barometer and atmospheric conditions, 1758; calculations of star positions; the longitude of various foreign towns; corrections to the sextant and quadrant; and calculations to discover longitude.
Dates: 1758
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 Information about opening hours and obtaining a Cambridge University Library reader's ticket is available from the Library's website (

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