Ten letter to James Dinwiddie from David Hare
Three letters to James Dinwiddie from J.H. Harrington
One letter to James Dinwiddie from Dr. Usher
One letter to James Dinwiddie from John Turing
Astronomy
Seventeen letters to James Dinwiddie from Logan Henderson
One letter to James Dinwiddie from J.S. Ewart
One letter to James Dinwiddie from Dr Blacklock
Hydrostatics and Hydraulics; Nature in Three Different Views; Colour; Lights and Colour
A letter from Charles Elliot to James Dinwiddie
Lecture 11
Lecture 13 - Astronomy
Optics, No. 1-3
Lecture Notes
Planitarium - Globe
Planitarium
Geography; Astronomy, No. 1,2; Navigation, No. 1,2
Two letters to James Dinwiddie from William Mackintosh Esq.
Lecture 2 - Astronomy
Lecture 10 - Astronomy