1. Mss Eur F178/61 Reference (shelfmark): Mss Eur F178/61 Title: Scope & Content: Drafts and notes for lectures by Datta. Dated as: Feb 1928-1931 Collection Area: India Office Records and Private Papers Languages: English Date Range: Feb 1928-1931 Extent: Unspecified
2. Mss Eur F178/62 Reference (shelfmark): Mss Eur F178/62 Title: Scope & Content: File of drafts and notes for lectures. Collection Area: India Office Records and Private Papers Languages: English Date Range: 1932-1936 Extent: Unspecified
3. Mss Eur F178/63 Reference (shelfmark): Mss Eur F178/63 Title: Scope & Content: Drafts, typescripts and printed texts of lectures and articles by Datta. Collection Area: India Office Records and Private Papers Languages: English Date Range: Jan 1933-Oct 1943 Extent: Unspecified
4. Mss Eur F178/64 Reference (shelfmark): Mss Eur F178/64 Title: Scope & Content: Undated lectures, articles and parts thereof. Dated as: [1920s-1942] Collection Area: India Office Records and Private Papers Languages: English Date Range: 1920s-1942 Extent: Unspecified
5. Mss Eur F178/65 Reference (shelfmark): Mss Eur F178/65 Title: Scope & Content: Drafts and typescripts of sections of Datta's book Asiatic Asia (London, 1932) and papers concerning its publication. Collection Area: India Office Records and Private Papers Languages: English Date Range: [1931-1932] Extent: Unspecified