Kater's invariable pendulum and clock for gravity observations, Sumatra Product:Framed picture the Creature is powerful and

the Creature is powerful and ready for violence

Map of Abbey Wood

labeled: 1

Blackfriars Road

George Porter was elected a Fellow of the Royal Society in 1960

Kater's invariable pendulum and clock for gravity observations, Sumatra Product:Framed picture the Creature is powerful andFront elevation showing the Kater invariable pendulum and supporting frame before a clock as set up at the Madras Observatory and used in John Goldingham's temporary expedition observatory. With a secondary figure showing the distance from the pendulum to the small observing telescope. Figure no. 4 from Report of the length of the pendulum at the equator made on an expedition from the observatory at Madras, by John Goldingham (Madras, 1824). Scale 1