Portsea Island
Found in 17 Collections and/or Records:
Copy of a letter from Thomas Kerigan to John Wilson Croker, 1825-07-16
Five letters from John Barrow concerning various matters, with a copy of a letter from Thomas Kerrigan, forwarded by Barrow to Dr Thomas Young.
John Sabben's parallactic parts of a circle calculated to a quarter of a degree, 1822-09-17
Letter from Charles Blackburn to Dr Thomas Young, 1824-04-06
Four letters from Charles Blackburn of the Royal Naval College to Dr Thomas Young.
Letter from Charles Blackburn to Dr Thomas Young, 1824-05-22
Four letters from Charles Blackburn of the Royal Naval College to Dr Thomas Young.
Letter from Charles Blackburn to Dr Thomas Young, 1824-06-29
Four letters from Charles Blackburn of the Royal Naval College to Dr Thomas Young.
Letter from J. Herbert to the Board of Longitude, 1820-07-12
Proposal and two related letters.
Letter from J. Herbert to Thomas Hurd, 1820-07-12
Originally enclosing the letter and proposal at [RGO 14/37: 274] and [RGO 14/37: 275-281] for the attention of the Board of Longitude.
Letter from John Turner to Lord Mulgrave, 1808-05-31
Three letters and a printed handbill.
Letter from John Turner to William Wales, 1796-05-01
Three letters and a printed handbill.
Letter from Robert Tucker to Dr Thomas Young, 1819-01-20
Four letters, a proposal and four colour star charts.
Letter from Robert Tucker to Dr Thomas Young, 1819-01-29
Four letters, a proposal and four colour star charts.
Letter from Robert Tucker to the Board of Longitude, 1819-01-26
Enclosing his proposed method for ascertaining longitude.
Letter from Thomas Kerigan to John Wilson Croker, 1826-09-22
Letter and paper.
Letter from William McLeod to Captain Thomas Hurd, 1816-12-02
Petition from John Turner regarding forms for working lunar observations, 1813
Miscellaneous petitions and memorials making requests of the Board of Longitude.
Printed notice from John Turner, 1795 - 1813
Concerning his plan for clearing the lunar distance and his method of finding latitude by a single altitude.