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See also:HORNER, LEONARD (1785-1864) , Scottish geologist, See also:brother of See also:Francis Horner (above), was See also:born in See also:Edinburgh on the 17th of See also:January 1785. His See also:father, See also:John Horner, was a See also:linen See also:merchant in Edinburgh, and Leonard, the third and youngest son, entered the university of Edinburgh in 1799. There in the course of the next four years he studied See also:chemistry and See also:mineralogy, and gained a love of See also:geology from See also:Playfair's Illustrations of the Kuttonian Theory. At the See also:age of nineteen he became a partner in a See also:branch of his father's business, and went to See also:London. In i 8o8 he joined the newly formed See also:Geological Society and two years later was elected one of the secretaries. Throughout his See also:long See also:life he was ardently devoted to the welfare of the society; he was elected See also:president in 1846 and again in 186o. In 1811 he read his first See also:paper " On the Mineralogy of the See also:Malvern Hills " (Trans. Geol. See also:Soc. vol. i.) and subsequently communicated other papers on the " Brine-springs at See also:Droitwich," and the " Geology of the S.W. See also:part of See also:Somersetshire." He was elected F.R.S. in 1813. In 1815 he returned to Edinburgh to take See also:personal superintendence of his business, and while there (1821) he was instrumental in See also:founding the Edinburgh School of Arts for the instruction of See also:mechanics, and he was one of the founders of the Edinburgh See also:Academy. In 1827 he was invited to London to become See also:warden of the London University, an See also:- OFFICE (from Lat. officium, " duty," " service," a shortened form of opifacium, from facere, " to do," and either the stem of opes, " wealth," " aid," or opus, " work ")
office which he held for four years; he then resided at See also:Bonn for two years and pursued the study of minerals and rocks, communicating to the Geological Society on his return a paper on the " Geology of the Environs of Bonn," and another " On the Quantity of Solid See also:Matter suspended in the See also:Water of the See also:Rhine." In 1833 he was appointed one of the commissioners to inquire into the employment of See also:children in the factories of See also:Great See also:Britain, and he was subsequently selected as one of the inspectors. In later years he devoted much See also:attention to the geological See also:history of the
See also:sillimanite, but kyanite appears also in hornfelses, especially in See also:evidence of this. While this "felspathization" may have occurred in a few localities, it seems conspicuously absent from others. Most authorities at the See also:present See also:- TIME (0. Eng. Lima, cf. Icel. timi, Swed. timme, hour, Dan. time; from the root also seen in " tide," properly the time of between the flow and ebb of the sea, cf. O. Eng. getidan, to happen, " even-tide," &c.; it is not directly related to Lat. tempus)
- TIME, MEASUREMENT OF
- TIME, STANDARD
time regard the changes as being purely of a See also:physical and not of a chemical nature. (J. S.
End of Article: HORNER, LEONARD (1785-1864)
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