Synopsis of the Results of the Operations of the Great Trigonometrical Survey of India, Vol 13, Descriptions and co-ordinates of the principal and secondary stations and other fixed points of the East Coast Series or Series C of the South-East Quadrilateral. Dehra Dun, 1880
Synopsis of the Results of the Operations of the Great Trigonometrical Survey of India, Vol 14, Descriptions and co-ordinates of the principal and secondary stations and other fixed points of the Budhon Meridional Series or Series J of the North-East Quadrilateral. Dehra Dun, 1883
Synopsis of the Results of the Operations of the Great Trigonometrical Survey of India, Vol 15, Descriptions and co-ordinates of the principal and secondary stations and other fixed points of the Rangir Meridional Series or Series K of the North-East Quadrilateral. Dehra Dun, 1883
Synopsis of the Results of the Operations of the Great Trigonometrical Survey of India, Vol 16, Descriptions and co-ordinates of the principal and secondary stations and other fixed points of the Amua Meridional Series or Series L, and the Karara Meridional Series or Series M of the North-East Quadrilateral. Dehra Dun, 1883
Synopsis of the Results of the Operations of the Great Trigonometrical Survey of India, Vol 17, Descriptions and co-ordinates of the principal and secondary stations and other fixed points of the Gurwani Meridional Series or Series N, and the Gora Meridional Series or Series 0 of the North-East Quadrilateral. Dehra Dun, 1883
Synopsis of the Results of the Operations of the Great Trigonometrical Survey of India, Vol 18, Descriptions and co-ordinates of the principal and secondary stations and other fixed points of the Hurilaong Meridional Series or Series P, and the Chendwar Meridional Series or Series Q of the North-East Quadrilateral. Dehra Dun, 1883
Synopsis of the Results of the Operations of the Great Trigonometrical Survey of India, Vol 19, Descriptions and co-ordinates of the principal and secondary stations and other fixed points of the North Parasnath Meridional Series or Series R, and the North Maluncha Meridional Series or Series S of the North-East Quadrilateral. Dehra Dun, 1883
Synopsis of the Results of the Operations of the Great Trigonometrical Survey of India, Vol 20, Descriptions and co-ordinates of the principal and secondary stations and other fixed points of the Calcutta Meridional Series or Series T, and the Brahmaputra Meridional Series or Series V of the North-East Quadrilateral. Dehra Dun, 1883
Synopsis of the Results of the Operations of the Great Trigonometrical Survey of India, Vol 21, Descriptions and co-ordinates of the principal and secondary stations and other fixed points of the East Calcutta Longtitudinal Series or Series U, and the Eastern Frontier Series or Series W, section 23° to 26°, of the North-East Quadrilateral. Dehra Dun, 1883
Synopsis of the Results of the Operations of the Great Trigonometrical Survey of India, Vol 22, Preliminary issue. Descriptions and co-ordinates of the secondary stations and other fixed points of the Assam Valley Triangulation, E of meridian 92°, emanating from the Assam Longtitudinal Series or Series X of the North-East Quadrilateral. Dehra Dun, 1891