Temporary observatory for pendulum observations, Sumatra mb-artistname Philibert Boutrois Adam 'The C-r-l-e Column'

'The C-r-l-e Column'

Interior view of St Michael's Church

Behind the two tables a man looks in a mirror and a waiter brings out a plate of food

Gunpowder Alley

He is being waved off by figures in boats

Temporary observatory for pendulum observations, Sumatra mb-artistname Philibert Boutrois Adam 'The C-r-l-e Column'Section through a tent observatory used for pendulum observations, indicating the location of main instruments (clock, pendulum, telescope and transit instrument) and the masonry pillar for mounting the pendulum clock. This is accompanied by a plan view of the pillar. Inscribed: 'Canvas Observatory' and 'Plan of the Wall'. Figure no. 2 from Report of the length of the pendulum at the equator made on an expedition from the observatory at Madras, by