Folio. [2], x, [2], 44, [2], 45-65, [3], xvii pp. With 18 plates (five folding). Original publisher's cloth-backed printed powder blue boards. Extremities rubbed and marked, ink-stamped shelf-mark to upper board. Internally clean and crisp.

An apparently unrecorded report detailing the design, cost, and construction of a proposed railway bridge spanning the Lower Ganges at Sara in order to provide easier communication between Calcutta and Eastern Bengal and Assam. The first estimate for the total cost a single-track line was £930,000. In 1913, two years after construction had begun, this had risen to a colossal £3,300,000 for a double-track line. The bridge was opened to traffic in 1915 and was dubbed the Hardinge bridge after the then Viceroy, Lord Hardinge. The compiler of the report, Francis Joseph Edward Spring (1849- 1933), entered the Indian Imperial Civil Service's engineering section in 1870. He served as Consulting Engineer to the Government of India and played a pivotal role in the development of railways in East India.