1. IOR/L/PS/20/MEMO22/Q Reference (shelfmark): IOR/L/PS/20/MEMO22/Q Title: The ancient course of the Amu-Daria. (Translation from a German pamphlet by Professor R Lenz of the St Petersburg 'Academie Imperiale des Sciences' Charles Grey, [undated] Collection Area: India Office Records and Private Papers Languages: English Date Range: Unspecified Extent: 28pp