Correspondence 1860-1867; published articles; Thornliebank chartulary 1789-1929.

Diaries and notebooks; correspondence; patents and legal cases; financial papers; technical and scientific notes; newspaper cuttings; educational and personal items.

Notebooks of experimental work; correspondence; testimonials; published articles by Graham, including his probationary essay to the Royal College of Physicians and Surgeons of Glasgow.

Lecture notes; published papers; obituaries; biographical information.