Temporary observatory for pendulum observations, Sumatra mb-artistname Philibert Boutrois Adam Interior view of St Michael's

Interior view of St Michael's Church

Gunpowder Alley

'The C-r-l-e Column'

One of the City giants (Gog

the water-oak (Catesby's identifications

Temporary observatory for pendulum observations, Sumatra mb-artistname Philibert Boutrois Adam Interior view of St Michael'sSection 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