Page 364 - 89 history of astronomy_opt

quired in his theoretical calculations. He
died in 1719.
Halley succeeded Flamsteed to find that
the whole place had been gutted by the lat-
ter’s executors. In 1721 he got a transit in-
strument, and in 1726 a mural quadrant by
Graham. His successor in 1742, Bradley, re-
placed this by a fine brass quadrant, eight
feet radius, by Bird; and Bradley’s zenith
364