Scope and Contents Acts regarding the standards of weights and measures, 1824-1870, printed 1840-1870, including the establishment of the Troy pound as the standard measure, the abolition of local measures such as the Winchester Bushel and the Scots Ell, the appointment of inspectors of weights and measures and the preservation of the restored standards: An Act for ascertaining and establishing Uniformity of Weights and Measures, 1824.An Act to prolong the Time of the Commencement of an Act of...

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There are Supplementary Acts regarding navigation and surveying the chief ports and headlands of Great Britain and Ireland; John Harrison and his chronometer; and discovering a northern passage between the Atlantic and Pacific Oceans and for making a journey to the North Pole.

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Analysis of Irish tide observations at Old Head, Mullaghmore, Buncrana, Port Rush, Carrowkeel and Ballycastle.

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Analysis of Irish tide observations at Glenarm, Donaghadee, Ardglass, Clougher Head, Kingstown and Courtown.

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Analysis of Irish tide observations at Dunmore East, New Ross, Passage West and Castletownsend. The volume also includes the epitome of the analysis of the individual stations; a list of the Moon's declinations; the diurnal and tertio-diurnal tide at Dunmore East and Courtown; and calculations titled 'Irregularities in the values of A as given by Analysis at the different stations collected'.

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Calculations for Irish tides, including tables of diurnal tides in conjunction with the Moon's transit and high and low water levels; computation of equations for diurnal tides and attempts to find their solution; and a model of the instrument used for the tidal observations.

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Calculations for Irish tides, including tables of corrections for diurnal tides and the rise of the tide. There are computations and analysis of the tides at Kilbaha, Kilrush, Foynes Island, Limerick, Cashel Bay and Galway.

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Correspondence on planetary reductions, including official correspondence with the Government on grants for the reductions and accounts of money paid to computers. There are also reductions of Irish tide observations and accounts and receipts of wages paid out. The correspondents include J. Phillips, J.F.W. Herschel, Viscount Althorp, S.P. Rigaud, T. Spring-Rice, J. Barrow, J.W. Lubbock, F. Beaufort, J. Glaisher and E. Sabine.

Scope and Contents Correspondence regarding various aspects of the Ordnance Survey, including the benchmark at the Royal Observatory used by the Ordnance Survey surveyors; a new triangulation of Great Britain based on the position of a new transit instrument at the Royal Observatory; a copy of the agenda for the International Geodetic and Geophysical Union meeting at Madrid, 1924; three copies of a leaflet on Ordnance Survey maps; information on the publication of the 'Empire Survey Review 1931'; and...

Scope and Contents A packet of letters and other items sewn together into one volume and entitled 'The Rev Mr Maskelyne's Letters, relating to the transit of Venus in 1761 and 1769 &c &c'.1. Maskelyne to Charles Mason giving instructions on observing Venus' transit and financial arrangements on board the 'Sea Horse', addressed c/o Captain Smith, 29 November 1760.2. Translations by Maskelyne of two papers by Alexandre Pingré:i. 'Memoires de l'Academic Royales des Sciences', 1761,...

Scope and Contents Correspondence with various United Kingdom and Republic of Ireland observatories and universities, including Professor P.A. Sweet of the Department of Astronomy, University of Glasgow; M.V. Ovenden, University of Glasgow; H.A. Brück, Astronomer Royal for Scotland, of the Royal Observatory, Edinburgh; Professor D.W.N. Stibbs of the University Observatory of St Andrews; T. Rackham of the Department of Astronomy, University of Manchester; P.A. Wayman of the Dunsink Observatory, Co. Dublin;...

Scope and Contents Correspondence with various United Kingdom and Republic of Ireland observatories and universities, including P.A. Wayman of the Dunsink Observatory, Co. Dublin; H.A. Brück, Astronomer Royal for Scotland, of the Royal Observatory, Edinburgh; S.F. Dermott of the Royal Military College of Science, Shrivenham, Wiltshire; D.W.N. Stibbs of the University Observatory, St Andrews; J. Darius of the University of London Observatory; S.Y. Haeri of the University of Manchester Institute of Science and...

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Sent from John Barrow to John Pond.

Scope and Contents From the Item:

Three letters and a proposal.

Scope and Contents From the Item:

Three letters, a proposal and a subsequent petition to the Board.

Scope and Contents From the Item:

Three letters, a proposal and a subsequent petition to the Board.

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A map of Ireland to accompany the Report of the Railway Commissioners, 1838, with Irish tide stations and lines of levelling overlaid.

Scope and Contents (1) Miscellaneous papers, 1888-1889Index sheet, 1889.Index sheet, 1888.Letter to W.G. King from H.C. Fox, 1888.Unsigned and undated memorandum [1888].Letter from W. Ellis to H.C. Fox replying to his letter, 1888.Letter from the R.M. College, Kingston, Ontario, and a reply from W. Ellis, 1888.Letter from W. Hoshen Richards regarding droughts and a reply from W. Ellis, 1888.Letter regarding cup...

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Daily Irish tide observations taken at Kilbaha, Kilrush, Foynes Island and Meads Quay between 24 June and 24 August 1842.

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Daily Irish tide observations taken at Cashla Bay, Galway, Old Head and Mulloughmore between 23 June and 23 August 1842.

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Daily Irish tide observations taken at Lough Swilly, Portrush, Carrowkeel and Ballycastle between 23 June and 23 August 1842. The volume also includes a scale, the purpose of which is unknown.

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Daily Irish tide observations taken at Glenarm, Donagadee, Ardglass and Clougher Head between 23 June and 23 August 1842.

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Daily Irish tide observations taken at Kingstown, Courtown Harbour, Dunmore East and New Ross between 23 June and 24 August 1842.

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Daily Irish tide observations taken at Passage West and Castletownsend between 23 June and 24 August 1842.

Scope and Contents Material concerning work on the geodetic surveys and longitudes in Britain, Europe and India. The papers include two maps of triangulations in Ireland (one on a smaller scale); a plan of principal triangles in Britain; a map of triangulations in Germany; a sketch of triangulations at Royston, Bedfordshire; calculations to find the latitude and longitude of Ben Lomond; triangulations in Scotland and on the Shetland Isles; disturbances of gravity of Shanklin Down, Isle of Wright, with a list...