| Description | Graham shares brief details of observations made with a telescope '18 inches long, which magnifies about 13 times.'
Subject: Astronomy
Read to the Royal Society on 7 December 1732
Published in Philosophical Transactions as 'An Eclipse of the Moon observed in Fleetstreet, London, Nov. 20, 1732, at night, by Mr. Geo. Graham, F. R. S' |