1870-80] ROYAL ASTRONOMICAL SOCIETY 189 Monthly Notices for 1874 February. Lord Lindsay's well-equipped Observatory at Dun Echt, of which Mr. David Gill was in charge till 1876, was practically completed in 1873, and description of the instruments, and of the work done with them, will be found in the February number of the Monthly Notices of 1873 and subsequent years. The equipment of the Temple Observatory, founded at Rugby School about 1872 in memory of a former headmaster, consisted of an 8J-inch equatorial by Alvan Clark, and a 1 2-inch reflector by With, which were used largely for educational purposes, but also by Mr. G. M. Seabroke for solar spectroscopic work, and by Mr. J. M. Wilson for observations of double stars. An Observa- tory was established by Mr. Edward Crossley at Bermerside, Halifax, Yorks, where many observations of double stars were made in the course of years. Colonel Tomline set up an Observatory at Orwell Park, Ipswich, in 1874, the principal instrument being an equatorially mounted refractor of 10 inches aperture, which was devoted to cometary work. Mr. George Knott transferred his home and Observatory, in 1873, from Woodcroft, Cuckfield, Sussex, where he had observed double stars and variable stars since 1859, to another place in the neighbourhood, but this cannot be called a new Observatory. The Observatory at Birr Castle, Parsonstown, was in active work, Lord Rosse (fourth Earl) being engaged on an investiga- tion with the 3-foot reflector of the heat radiated by the moon, whilst the 6-foot reflector was used for examining nebulae and for making drawings of Jupiter. Lord Rosse's researches on lunar heat were communicated to the Royal Society and published in Philosophical Transactions, 1873. At Mr. Barclay's private Observatory at Leyton, Essex, established by him in 1854, it was chiefly double stars which were observed. The Observatory of Mr. George Bishop, junior, that had been removed from Regent's Park to Twickenham on the death of Mr. Bishop, senior, in 1861, was closed in 1876. Mr. R. S. Newall's 25-inch telescope, now at Cambridge Observatory, was completed and set up at Gateshead about 1871. A telescope with object-glass of 21 J inches aperture made by Mr. J. Buckingham, which had been exhibited in the Great Exhibition of 1862, was transferred by him from Walworth to a well-equipped Observatory at East Dulwich, London, S.E., and used for occasional planetary and other observations.* Mr. E. J. Cooper, who had established a fully equipped Obser- vatory at Markree Castle, County Sligo, in 1831, died in 1863,! and was succeeded in the estate by his nephew, Colonel E. H. Cooper. The nephew had not the same active interest in Astro-
- This telescope is now at the City Observatory, Calton Hill, Edinburgh,
f The date is incorrectly given as 1872 in Monthly Notices, 63, 197.
