1. IOR/V/27/732/42 Reference (shelfmark): IOR/V/27/732/42 Title: Walch, George T, Note on some of the chief navigable rivers and canals in the United States and Canada... Plates. Madras: Lawrence Asylum Press, 1877-1879 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1877-1879 Extent: 1 volume