One letter to James Dinwiddie from Mr. Welles
Three letters to James Dinwiddie from J.H. Harrington
Journal
Journal
A letter from T White, with an addition by Thomas McCarthy, to James Dinwiddie
One letter to James Dinwiddie from V. Thibault
Six letters to James Dinwiddie from Heron
Queries and Hints vol. 3 (new series) or vol. 22 (old series) #472-590
A letter from Captain Price to James Dinwiddie
Five letter to James Dinwiddie from A.C. Gika
One letter to Col. Shawe from James Dinwiddie
No. 3
Journal
A letter from William Hyslop to James Dinwiddie
Journal
One letter to James Dinwiddie from the Rev. Dr. John Mackenzie
Journal
A letter from Janet McNaught to James Dinwiddie
One letter to James Dinwiddie from Duplessy
Journal
Journal
Journal
Journal
Journal
Journal of Galvanism
An undated and unsigned letter
One letter to James Dinwiddie from W.B.
One letter to James Dinwiddie from A.P. Buchanan
One letter to James Dinwiddie from Miss Gill
One letter to James Dinwiddie from Kennedy
One letter to James Dinwiddie from M. Stokes
One letter, unknown sender or receiver
Journal
Journal
Journal
Antitheses, No. 2
Galvanic Experiments
Wheel Carriages
Logarithms
One letter to James Dinwiddie from I. Vans Agnew
One letter to James Dinwiddie from John Broateh
One letter to James Dinwiddie from William Hyslop
One letter to James Dinwiddie from John Kelso
Diagram of a pike made by Coulter.
One letter, unknown sender and receiver
Journal
Journal
Optics
An Examination of the 2nd Part of Mr. Hume's 12th Essay
Excerpt from Dictionary