Letter from Nathan Sivin to Angus Graham to enclose notes on Tsou Yen (not present).

Letter from Nathan Sivin, Kyoto University, to Angus Graham to write about Mohist optics and to send some recent work he has done on the topic, dated 3 March 1968.

Connected with this letter are Propositions about optics: Propositions XVI to XXIII and Propositions XX, XXI and XXVII as visual representations of ancient Chinese conceptions about optics.

Letter from M.J. Daly, Publications Officer, SOAS, to Angus Graham to thank for his note and agreement to pay some of the cost towards the publication. Undated.

Letter from M.J. Daly, Publications Officer, SOAS, to Angus Graham to state that he couldn't find the file that Graham had wanted to submit to the Publications Committee in Graham's office.

Letter from M.J. Daly, Publications Officer, SOAS, to Angus Graham to inform that the Committee has concluded that it is unable to accept Graham's proposal.

Letter from M.J. Daly, Publications Officer, SOAS, to Angus Graham to ask him to make an appointment to go through queries on text and layout. He also offers an alternative title.

Letter from M.J. Daly, Publications Officer, SOAS, to Angus Graham to obtain clarification regarding his proposal. A handwritten note states that Graham's phone call had clarified the matter.

Letter from M.J. Daly, Publications Officer, SOAS, to Adrian Teng, The Chinese University of Hong Kong, to ask for further information regarding Graham's publication. With the letter is a compliment slip from the Publications Officer.

Letter from Michael Loewe, Faculty of Oriental Studies, University of Cambridge, to Angus Graham to send an edited version of Graham's contribution to the Bibliography of Early Chinese Literature and to give some explanation for the delay.

Letter from Michael Loewe, Faculty of Oriental Studies, University of Cambridge, to Angus Graham to thank him for his contributions towards Early Chinese Texts: A Bibliographical Guide and to ask if he will also provide the Lieh-tzu contribution. With the letters is a list of the state of contributions to the text.