Subject: Synopsis of the results of the operations of the Great Trigonometrical Survey of India, including descriptions and co-ordinates of the principal and secondary stations and other fixed points of the Bilaspur Meridional Series or Series F of the South-East Quadrilateral.
Publisher: Printed at the Office of the Trigonometrical Branch, Survey of India, M. J. O'Connor
Subject: 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
Publisher: Office of the Trigonometrical Branch, Survey of India, D. V. Hughes
Subject: Descriptions and Coordinates of the Principal and Secondary Stations and Other Fixed Points of the Jogi-Tila Meridional Series (Series G) and the Sutlej Series (Series H) of the North-West Quadrilateral
Publisher: Office of the Great Trigonometrical Survey of India, M. J. O'Connor
Subject: The Gurwani and Gora Meridional Series, appertaining to the North-East Quadrilateral. Descriptions and coordinates of the principal and secondary stations and other fixed points.
Publisher: Printed at the Office of the Trigonometrical Branch, Survey of India E. T. Hughes