Temporary observatory for pendulum observations, Sumatra Size:Standard: 6 x 4in 'Old Shooes for Some Broomes'

'Old Shooes for Some Broomes'

the red-legged thrush

with a clock on the central gable

White shirt

Temporary observatory for pendulum observations, Sumatra Size:Standard: 6 x 4in 'Old Shooes for Some Broomes'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