1. IOR/F/4/1854/78414 Reference (shelfmark): IOR/F/4/1854/78414 Title: Scope & Content: Colonel J F Bonner's report to the East India Company on the manufacture and use of tread-mills (with associated correspondence) [Appendix to 78413 Feb 1841] Collection Area: India Office Records and Private Papers Languages: English Date Range: [c 1841] Extent: 1 file