Subject: Descriptions and co-ordinates of the principal and secondary stations and other fixed points of The Kathiawar Meridional Series or Series J of the South-West Quadrilateral.
Publisher: Printed at the Office of the Trigonometrical Branch, Survey of India, B. V. Hughes.
Subject: Descriptions and Co-ordinates of the Principal and Secondary Stations and Other Fixed Points of the Cutch Coast Series or Series L of the South-West Quadrilateral
Publisher: Office of the Trigonometrical Branch, Survey of India, D. V. Hughes
Subject: Synopsis of the results of the operations of the Great Trigonometrical Survey of India, focusing on the Singi Meridional Series or Series H of the South-West Quadrilateral.
Publisher: Printed at the Office of the Trigonometrical Branch, Survey of India