1. IOR/V/18/259 Reference (shelfmark): IOR/V/18/259 Title: Astronomical Observations Made at the East India Company's Observatory at Madras, 1812-1816. Vol 3 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1812-1816 Extent: 1 volume
2. IOR/V/18/260 Reference (shelfmark): IOR/V/18/260 Title: Astronomical Observations Made at the East India Company's Observatory at Madras, 1817-1823. Vol 4 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1817-1823 Extent: 1 volume