| Description | Notes the types of work (such as solar photography, magnetic survey, tidal observations, astronomical work, pendulum operations) carried out in India, the year each was started, the annual cost, and who led the scientific direction of each. Discusses the expenditure required to bring maps up to date. Dicusses triangulation and the work associated with it, including 'so called' scientific work like levelling. Explains that the pendulum work is part of an international scheme. Explains the history of the principal triangualtion, which has always been supported by the Royal Society, and which is finished now. Discusses the importance of the scientific side of the survey. |