31. IOR/V/20/172 Reference (shelfmark): IOR/V/20/172 Title: Records of the Geological Survey of India, Vol 63 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1930 Extent: 1 volume
32. IOR/V/20/173 Reference (shelfmark): IOR/V/20/173 Title: Records of the Geological Survey of India, Vol 64 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1930 Extent: 1 volume
33. IOR/V/20/174 Reference (shelfmark): IOR/V/20/174 Title: Records of the Geological Survey of India, Vol 65 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1931-1932 Extent: 1 volume
34. IOR/V/20/175 Reference (shelfmark): IOR/V/20/175 Title: Records of the Geological Survey of India, Vol 66 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1932-1933 Extent: 1 volume
35. IOR/V/20/176 Reference (shelfmark): IOR/V/20/176 Title: Records of the Geological Survey of India, Vol 67 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1933-1934 Extent: 1 volume
36. IOR/V/20/177 Reference (shelfmark): IOR/V/20/177 Title: Records of the Geological Survey of India, Vol 68 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1934-1935 Extent: 1 volume
37. IOR/V/20/178 Reference (shelfmark): IOR/V/20/178 Title: Records of the Geological Survey of India, Vol 69 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1934-1936 Extent: 1 volume
38. IOR/V/20/179 Reference (shelfmark): IOR/V/20/179 Title: Records of the Geological Survey of India, Vol 70 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1936 Extent: 1 volume
39. IOR/V/20/180 Reference (shelfmark): IOR/V/20/180 Title: Records of the Geological Survey of India, Vol 71 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1936-1937 Extent: 1 volume
40. IOR/V/20/181 Reference (shelfmark): IOR/V/20/181 Title: Records of the Geological Survey of India, Vol 72 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1937 Extent: 1 volume