India. McMahon, C.A. (1877). ‘The Blaini Group and the “Central Gneiss” of the Simla Himalayas’, extract of The RecordsIndia. McMahon, C. A. (1877). The Blaini Group and the Central Gneiss of the Simla Himalayas, extract of The Records of the Geological Survey of India, vol. X, pt. 4, pp. 204 223, + 1 foldout hand coloured map, The Blaini Group and the Central Gneiss in the Simla Himalayas, scale 1=4 miles 1: 253,440, 49x 65 cm. Last two pages of text soiled, otherwise clean, and map age toned but clean. Most of map is hachured topography with colouring limited to one