THE SURVEY OFFICE. - Ceylon showing annual average rainfall up to 1926 inclusive.

A uncommon issue of this detailed map of Ceylon showing the annual average rainfall in a scale of 24 miles to an inch.

The Department of Survey of Sri Lanka (also known as the Department of the Surveyor General) is a non-ministerial government department in Sri Lanka. Established on 2 August 1800, it is the oldest unchanged government department in the country. Until to date 47 Surveyor General have served the Survey Department of Sri Lanka. This map was prepared under the direction of A.J.Wickwar.