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.
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.
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.
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.
Item is volume 11 James Dinwiddie's "Queries and Hints," containing queries numbered 1896-1972 and headings including manufacturers, metallurgy and mechanics.
Item is volume 13 of James Dinwiddie's "Queries and Hints," containing queries numbered 2082-2172 and headings including mathematics, engineering and mechanics.
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.
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.
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.
Item is a book kept by James Dinwiddie containing notes about lectures held at the (25 April 1811- 13 August 1811) about experiments in electricity, chemical apparatus, and electrochemistry.
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.