1. IOR/F/4/768/20890 Reference (shelfmark): IOR/F/4/768/20890 Title: Scope & Content: Claim of Herbert Ryder to remuneration for his exertions in establishing the manufacture of glass and aqua fortis (nitric acid) at Madras. Collection Area: India Office Records and Private Papers Languages: English Date Range: Nov 1814-Dec 1815 Extent: 1 file