This file contains handwritten notes, typescripts and correspondence relating to:
- ‘Pneumatic Medicine in Traditional China; Acupuncture, Elixirs and Enchymomas’, Cambridge Philosophical Society given on 21 Jan. 1974
- ‘Alchemy and Chemo-Therapy in East and West’, the Irvine Lecture given at St. Andrews on 2 May 1973
- ‘Gnosticism and Alchemy in China and the West’ given to the Robertson Smith Society on 13 Feb. 1974
- ‘Chem. App. And Ɵeory Lecture’ given at the University of British Columbia in 1975
- ‘The History of Alcohol’ given to the Caius History Society on 25 Nov. 1970 and Π (OUSS) on 1 Feb. 1971
- The Bowra lecture, no date given
- Lecture on the history of proto-chemistry and alchemy in Old World civilisations given at the Chinese University of Hong Kong, 1974
- Lecture titles, dates and institutions for lectures given on Joseph Needham’s trip to Toronto (including Guelph, Royal Ontario Museum, IHST University of Toronto and York, 27 Nov. - 6 Dec. 1972.

A sub-file entitled ‘Canada Nov/Dec 72 Lectures’ includes:
- 加拿大 lectures ‘material taken’
-‘The Ancient Chinese Roots of Chemical Medicine’ given at Guelph on 27 Nov. 1972
-‘The Coming of Ardent Water – A Central Asian Discovery?’ given at Guelph on 29 Nov. 1972
- ‘Alchemy and Early Chemistry in East and West’ given at the Royal Ontario Museum on 2 Dec. 1972
- ‘Achievements of Chinese Natural History’ given at IST Toronto on 4 Dec. 1972
- ‘Botany in Classical China’ given at the Royal Ontario Museum, 5 Dec. 1972
- ‘The Chinese and Arabic Origins of Chemo-Therapy’ given at York University, Toronto on 6 Dec. 1972.

The subsequent papers in the file include:
- ‘Science and Religion in 中 [Chinese] Culture: the Elixir and the Enchymoma’ given as part of the Fremantle lectures, no year given c.1972
- ‘Where did Chemistry come from?’ given in Aberystwyth on 13 Mar. 1972
- ‘Early Chemistry in 中 [Chinese] Civilisation’ given to the University of East Anglia Chemistry Society on 21 Jan. 1971 and the Stubbs Society Oxford on 25 Jan. 1971
-‘Epic of Chinese Alchemy’ given in Bangor on 15 Mar. 1971 and ‘Coming of Modern Chemistry in 中 [China]’ given in Bangor on 16 Mar. 1971
- Lectures on pharmacy, botany, salt, medicine given in the University of British Columbia in 1975.