One letter to James Dinwiddie from John Edgar
Two letters to James Dinwiddie from A Mercer
One letter to James Dinwiddie from Robert Stevenson
Questions; Mechanics; Of Central Forces
Queries and Hints vol. 3 #428-613
One letter to James Dinwiddie from I. Costellae
Lecture 6 - Theories of the Earth
Dynamics: 1. On the distinguishing properties of matter; 2. On the perserverance of matter; 3. Of the powers and activity of matter
Introduction; Mechanics
Hydrostatics and Hydraulics; Nature in Three Different Views; Colour; Lights and Colour
A letter from William Kellock, to James Dinwiddie
One letter to James Dinwiddie from James Lynch
One letter to James Dinwiddie, sender unknown,
Motion and Force
Plane Mirrors; Archimedes; Gravity
One letter to James Dinwiddie from A Eason
One letter to James Dinwiddie from Thomas Irvine
One letter to James Dinwiddie from Charles Spalding
One letter to James Dinwiddie from Charles Taylor
One letter to James Dinwiddie from George Bell
Three letters about James Dinwiddie written by James Gandon
Seventeen letters to James Dinwiddie from Logan Henderson
One letter to James Dinwiddie from John McGeorge
One letter to James Dinwiddie from Ino Riddick
One letter to James Dinwiddie from James White
One letter to James Dinwiddie from R. Higginbotham
One letter to James Dinwiddie from T. Hancock Neville
Letter to James Dinwiddie from C. Clagget concerning access to rooms in Dublin
General Law of Nature
Five letters to James Dinwiddie from W. Hart Stevenson
Queries and Hints vol. 4 #614-727
One letter to James Dinwiddie from William Blanta Esq.
One letter to James Dinwiddie from William Crumbie
One letter to James Dinwiddie from James Carmichael
One letter to James Dinwiddie from John Wood
Queries and Hints vol. 5 #728-794
A letter from Harry Robertson to James Dinwiddie
One letter to James Dinwiddie from Dr Blacklock
Two letters to James Dinwiddie from Herbert Jenkins
One letter to W.H. Stevenson from A. Neilson
Journal
One letter to James Dinwiddie from Robert Blair
Queries and Hints vol. 6 #795-1000
A letter from Margaret Kertland, to James Dinwiddie
One letter to James Dinwiddie from H.B.T.
One letter to James Dinwiddie, sender unknown,
Queries and Hints vol. 9 #1287-1721
One letter to James Dinwiddie from J.S. Ewart
One letter to James Dinwiddie from Andrew Mitchell
One letter to James Dinwiddie from William Steven