In 1825 Baily retired from the Stock Exchange, having acquired a considerable fortune, and shortly afterwards took a house in Tavistock Place, giving his whole attention to the furtherance of astronomical science. Here, he executed that grand series of labours which has perpetuated his name, and the building in which the Cavendish experiment of weighing the earth was repeated, its bulk and figure determined, and the standard of British measure perpetuated, must continue to be a source of interest to scientific men for many generations to come. The chief works to which Mr. Baily devoted himself during this later portion of his life are:-- 1. The Remodelling of the Nautical Almanac. 2. The Determination of the length of the Seconds Pendulum. 3. The Fixation of the Standard of Length. 4. The Determination of the Density of the Earth. 5. The Revision of the Catalogues of the Stars. 6. The Reduction of Lacaille's and Lalande's Catalogues; and 7. The Formation of a New Standard Catalogue. The benefits which not only astronomy but all England have derived from these laborious investigations, can hardly be too much appreciated. But a short time elapsed, after Baily had completed his observations on the pendulum, and determined the standard of length,--being thereby enabled to compare his new scale with the imperial standard yard,--when the conflagration of the Houses of Parliament in 1834 took place, and both the latter standard, and the original one by Bird (that of 1758) were destroyed. When it is considered that Baily's repetition of the Cavendish Experiment involved untiring watching for more than 1200 hours, and this, too, by one who in early life seemed only able to find food for his vigorous mind amidst the hardships and fatigues of travel, it affords a remarkable instance how a man, active and full of ardour in early youth, can yet be enabled, by the strength of his character, to concentrate the full force of his powers upon a series of researches apparently the most wearying and full of disappointment, an example well fitted for the earnest consideration of all who imagine that the energies of their minds can alone be satisfied by stirring scenes or a life full of activity and adventure. Mr. Baily's last public appearance was at Oxford, to which place he went with some difficulty, to receive the honorary degree of Doctor of Civil Law. He was distinguished by great industry, which was made more effective by his methodical habits; and also by a suavity of manner which greatly enlarged the circle of his friends. In fact, Mr. Baily effected in the last 20 years of his life, a greater number of complete and refined researches than most other philosophers have accomplished during a whole lifetime.--_Memoir of Francis Baily, by Sir John Herschel, Bart._ London, 1856. SIR JOSEPH BANKS, BART., C.B., P.R.S. MEMBER OF THE INSTITUTE OF FRANCE, ETC. Born February 12, 1743. Died June 19, 1820.