Correspondence between E.V. Gibson, Royal Asiatic Society Secretary, and J.G. Thura Raja Singam. These are:
- Letter from E.V. Gibson to J.G. Thura Raja Singam to thank him for submitting his paper on the Thai-Burma railway, dated 8 September 1980.
- Letter from J.G. Thura Raja Singam to E.V. Gibson to ask for the return of his paper as he realises he has not conformed to all the stipulations required, dated 1 October 1980.
- Letter from J.G. Thura Raja Singam to E.V. Gibson to thank for the return of his paper and to pay for the additional expenditure incurred, dated 24 October 1980.
- Letter from J.G. Thura Raja Singam to E.V. Gibson to return his modified manuscript, dated 31 October 1980.
- Letter from E.V. Gibson to J.G. Thura Raja Singam to inform that his paper has arrived safely, dated 7 November 1980.