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James Dinwiddie fonds With digital objects
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Time

These notes written by James Dinwiddie ca. 1793 focus on time.

Trigonometry

These lecture notes written by James Dinwiddie ca. 1793 focus on trigonometry. The notes begin with a series of definitions of angles, circles, and trigonometric measurements. They go on to mention various corollaries and theorems related to trigonometry.

Two letters to James Dinwiddie from Robert Blain

INDICES:::Robert Blain ; Joseph Hume ; credentials ; Christopher ; Norwich ; Norfolk ; Archdeacon ; Bishop ; Clergymen ; parrish ; University ; Cambridge ; University ; Marquis ; Buckingham ; Royal College of Physicians

Vision

File contains two notebooks containing notes about vision, including descriptions about the structure of the eye as well as the diffraction and refraction of light.

Vitriolated Tartar/Nitre

These notes written by James Dinwiddie focus on vitrolated tartar and nitre. Dinwiddie discusses the chemical composition of each substance as well as various reactions when they are mixed with other compounds.

Vol 1 : queries and hints in 20 vols.

Item is the first volume of a journal created by James Dinwiddie while he was in Ireland and Northern Ireland in 1779-1780. This volume contains scientific queries numbered 1-123 with additional notes and observations in the end pages.

Vol. 11 [Queries and Hints]

Item is volume 11 James Dinwiddie's "Queries and Hints," containing queries numbered 1896-1972 and headings including manufacturers, metallurgy and mechanics.

Vol. 13 [Queries and HInts]

Item is volume 13 of James Dinwiddie's "Queries and Hints," containing queries numbered 2082-2172 and headings including mathematics, engineering and mechanics.

Vol. 16, queries and hints

Item is volume 16 of James Dinwiddie's "Queries and Hints," which contains queries numbered 2252-2360 and subject headings including navigation and natural history.

Vol. 17 [Queries and Hints]

Item is volume 17 of James Dinwiddie's "Queries and Hints," which contains queries numbered 2361-2455 and was created when Dinwiddie was in China.

Vol. 18 [Queries and Hints]

Item is volume 18 of James Dinwiddie's "Queries and Hints," which contains queries numbered 2457-2508 and was created when Dinwiddie was in China.

Vol. 2, Scientific Institution, 1810

Item is a book kept by James Dinwiddie containing notes about Singer's lectures (January 12 - June 18, 1810) on topics in chemistry, including experiments, chemical properties of air and electricity.

Vol. 3 [Queries and Hints]

Item is volume 3 of "Queries and Hints," containing queries numbered 428-613, created by James Dinwiddie in 1782 while he was in Dublin.

Vol. 4 [Queries and Hints]

Item is volume 4 of "Queries and Hints," containing queries numbered 614-727, created by James Dinwiddie in May 1784 while he was in Waterford, Ireland.

Vol. 6 [Queries and Hints]

Item is volume 6 of "Queries and Hints," containing queries numbered 795-1000, created by James Dinwiddie in April 1787 while he was in London.

Wheel carriages

Item is a notebook kept by James Dinwiddie in which he makes observations about wheel carriage design, in particular the relationship between wheels and axles and the size of both required by different vehicles.
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