Page:Dictionary of National Biography, Second Supplement, volume 1.djvu/264

 Robert Louis, was long another close friend.

In 1867 Buchan published in Edinburgh 'The Handy Book of Meteorology' (2nd edit. 1868), which became a recognised text-book all over the world. There followed in 1871 'Introductory Text-book of Meteorology.' Buchan and Dr. A. J. Herbertson prepared the comprehensive volume on meteorology for 'Bartholomew's Physical Atlas' (1899). But it was as the chief contributor to the 'Journal of the Scottish Meteorological Society' (in which appeared 66 papers) and as a frequent contributor to the 'Transactions of the Royal Society of Edinburgh ' that Buchan's most valuable work, which touched every phase of climatology and meteorology, was done. His paper on ' Mean Pressure and Prevailing Winds of the Globe' (Roy. Soc. Edin. Trans. 1869) of which the Austrian meteorologist von Hann wrote 'It is even more important than ['The Distribution of Heat over the Surface of the Earth' (Berlin, 1852)] the celebrated work of Dove'—fully justifies Buchan's claim in behalf of meteorology that it should be regarded as the youngest of the sciences. The subject is developed further in his 'Report on Atmospheric Circulation, based on Observations made on Board H.M.S. Challenger and other Meteorological Observations' (Challenger Reports, 'Physics and Chemistry,' vol. ii. part 5, 1889). The numerous tables in the text co-ordinate a vast mass of data, and the fifty-two coloured maps show the mean temperature, isobaric lines, and prevailing winds over the globe, for each month of the year and for the year, while two plates of curves indicate the deviations at different hours of the day from the mean daily temperature, mean daily atmospheric pressure, wind velocity, and the like. Buchan's 'Report on Oceanic Circulation, based on Observations made on Board H.M.S. Challenger and other Observations,' which appeared in 1895, illustrates with equal thoroughness the mean annual specific gravity and the mean annual temperature at the surface of the ocean, as well as the temperature at various depths beneath the surface and at the bottom. These subjects are dealt with again in a paper on 'Specific Gravities and Oceanic Circulation' (Trans. Roy. Soc. Edinburgh, 1896, with nine maps), showing the specific gravities observed at the surface, and at various depths beneath the surface, of the ocean.

Of scarcely less value are the papers written for the Royal Society in conjunction with Sir Arthur Mitchell [q. v. Suppl. II] on the 'Influence of Weather on Mortality from different Diseases and at different Ages' and on 'Influenza and Weather in London.' According to Dr. von Hann other papers by Buchan on the relations between the distribution of atmospheric pressure and long continued weather-anomalies broke 'new ground for a sound advance of meteorology in central Europe.'

Buchan's merits were widely recognised in many ways. From the Royal Society of Edinburgh he received the Makdougall Brisbane medal in 1876 and the Gunning prize in 1893; Glasgow conferred upon him the honorary degree of LL.D. in 1887; he was elected F.R.S. in 1898, and in 1902 he was the first recipient of the medal founded by the Royal Meteorological Society of London in commemoration of George James Symons [q. v. Suppl. I]. Buchan's interests were varied. A skilled botanist, he was president of the Edinburgh Botanical Society in 1870-1. He had a profound appreciation for and knowledge of literature, particularly old English poets, dramatists, and historians. He was also an elder of St. George's United Free Church in Edinburgh. Buchan died on 13 May 1907 at 2 Dean Terrace, Edinburgh, and was buried at the Warriston cemetery. He married in 1864 Sarah, daughter of David Ritchie of Musselburgh; she died on 13 May 1900, leaving a son, A. Hill Buchan, who took up the profession of medicine.



BUCHANAN, GEORGE (1827–1905), surgeon, born at Glasgow on 29 March 1827, was son of Moses Steven Buchanan (1796-1860) and Agnes Leechman, his wife. The father, who was surgeon to the Royal Infirmary and lecturer on anatomy in the Portland Street Medical School from 1836 to 1841, was appointed in the latter year professor of anatomy in the Andersonian University.

George was educated at the University of Glasgow, where he graduated M.A. in 1846. Three years later, after studying under his father and others 'at the Andersonian University, he became M.D. St. Andrews and L.R.C.S. Edinburgh, and in 1852 fellow of the Royal Faculty of Physicians and Surgeons of Glasgow. In early life