The International Congress of Orientalists, initiated in Paris in 1873, was an international conference of Orientalists. It was later renamed as the International Congress of Human Sciences in Asia and North Africa and then as the International Congress of Asian and North African Studies. This material covers the interaction of the Royal Asiatic Society with the Congress in the time period 1889 to 1993.

In 1939 the Royal Swedish Academy of Sciences celebrated its bicentenary. These papers consist of a printed invitation to the Royal Asiatic Society to send delegates to the celebration and correspondence regarding this. These are:

• "The Royal Swedish Academy of Sciences 1739-1939". Official invitation to the Royal Asiatic Society to send one or more delegates to the celebration of their 200th anniversary from 23-25 September 1939. Printed material with handwritten insertions, undated.
• Letter from Col. Hoysted, Secretary, Royal Asiatic Society, to The President, Royal Swedish Academy of Sciences, to state that the invitation will be laid before the Council at its next meeting. He asks for further information regarding the venue. Typed, dated 24 April 1939.
• Letter from Col. Hoysted, Secretary, Royal Asiatic Society, to Rev. C.T. Harley Walker to inform him that he had been unanimously chosen to represent the Society at the Royal Swedish Academy of Sciences' bicentenary. Typed, dated 10 May 1939.
• Letter from Col. Hoysted, Secretary, Royal Asiatic Society, to Professor Bernhard Karlgreen to inform him that he had been unanimously chosen to represent the Society at the Royal Swedish Academy of Sciences' bicentenary. Typed, dated 10 May 1939.
• Letter from Rev. C.T. Harley Walker to the Royal Asiatic Society to express his honour at being chosen to represent the Society. He also asks whether there might be some help with the expenses for attending the celebrations. Handwritten, 3 pages, dated 15 May 1939.
• Letter from Col. Hoysted, Secretary, Royal Asiatic Society, to Mr Perowne, Solicitor, concerning Rev. C.T. Harley Walker being asked to represent the Society and how Hoysted should respond to his letter. Handwritten, dated 17 May 1939.
• Letter from Edward Perowne, Solicitor, to Col. Hoysted, Secretary, Royal Asiatic Society, to state that the letter should be put before the Council. His view as Honorary Treasurer was that no money should be given. Typed with printed letterhead, dated 22 May 1939.
• Letter from Col. Hoysted, Secretary, Royal Asiatic Society, to Rev. C.T. Harley Walker to state that he would reply to his enquiry after the next Council meeting. Typed, dated 23 May 1939.
• Letter from Professor Bernhard Karlgreen to Col. Hoysted, Secretary, Royal Asiatic Society, to state that he would be honoured to represent the Society. Handwritten with printed letterhead, dated 30 May 1939.
• Letter from Col. Hoysted, Secretary, Royal Asiatic Society, to Rev. C.T. Harley Walker to inform him that the Council regrets that it will be unable to make a contribution towards travelling expenses. Typed, dated 14 June 1939.
• Letter from Col. Hoysted, Secretary, Royal Asiatic Society, to The President, Royal Swedish Academy of Sciences, to state that the Society's delegate will be Professor Bernhard Karlgreen. Typed, dated 15 June 1939.
• Letter from Professor D.S. Margoliouth, President, Royal Asiatic Society, to Col. Hoysted, Secretary, Royal Asiatic Society, to state that one representative of the Society will be sufficient. Handwritten with printed letterhead, dated 5 July 1939.
• Letter from Rev. C.T. Harley Walker to the Royal Asiatic Society to state that he will not be able to travel to Sweden for the bicentenary celebrations. Handwritten, 2 pages, dated 14 July 1939.
• Letter from Col. Hoysted, Secretary, Royal Asiatic Society, to Rev. C.T. Harley Walker to express his regrets that Walker will be unable to represent the Society. Typed, dated 17 July 1939.