11. IOR/V/20/150 Reference (shelfmark): IOR/V/20/150 Title: Records of the Geological Survey of India, Vols 27-28 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1894-1895 Extent: 1 volume
12. IOR/V/20/152 Reference (shelfmark): IOR/V/20/152 Title: Records of the Geological Survey of India, Vols 31-32 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1904-1905 Extent: 1 volume
13. IOR/V/20/153 Reference (shelfmark): IOR/V/20/153 Title: Records of the Geological Survey of India, Vols 33-34 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1906 Extent: 1 volume
14. IOR/V/20/154 Reference (shelfmark): IOR/V/20/154 Title: Records of the Geological Survey of India, Vols 35-36 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1907-1908 Extent: 1 volume
15. IOR/V/20/155 Reference (shelfmark): IOR/V/20/155 Title: Records of the Geological Survey of India, Vols 37-38 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1908-1910 Extent: 1 volume
16. IOR/V/20/156 Reference (shelfmark): IOR/V/20/156 Title: Records of the Geological Survey of India, Vols 39-40 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1910 Extent: 1 volume
17. IOR/V/20/157 Reference (shelfmark): IOR/V/20/157 Title: Records of the Geological Survey of India, Vols 41-42 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1911-1912 Extent: 1 volume
18. IOR/V/20/158 Reference (shelfmark): IOR/V/20/158 Title: Records of the Geological Survey of India, Vols 43-44 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1913-1914 Extent: 1 volume
19. IOR/V/20/159 Reference (shelfmark): IOR/V/20/159 Title: Records of the Geological Survey of India, Vols 45-46 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1915 Extent: 1 volume
20. IOR/V/20/160 Reference (shelfmark): IOR/V/20/160 Title: Records of the Geological Survey of India, Vols 47-48 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1916-1917 Extent: 1 volume