Subject: Descriptions and Co-ordinates of the Principal and Secondary Stations and Other Fixed Points of the Bider Longitudinal Series or Series D 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 East Coast Series or Series C of the South-East Quadrilateral
Publisher: Printed at the Office of the Trigonometrical Branch, Survey of India
Subject: Descriptions and Co-ordinates of the Principal and Secondary Stations and Other Fixed Points of The Jabalpur Meridional Series or Series E of the South-East Quadrilateral
Publisher: Printed at the Office of the Trigonometrical Branch, Survey of India