1383 



Young 



Young. 



1384 



Young, Arthur. — Gutspächter u. 

 Schriftstelier; seit 1 793 Secretär d. Board 

 of Agricullure in London. Machte inGross- 

 britlannien u. auf d. Gontinent wiederholt 

 landwirthschaftl. Keisen (KEC), 

 geb. 1741, Sept. 7, London, 

 gest. 1820, Apr. 12, London.* 

 A. course of experimental agricullure etc., 

 2 vol. 4°, Dodsley 1770. Anuals of agricul- 

 lure, -iS vol. 8", Lond. 1784— 1804. Noch an- 

 derweite landwirlhschaftl. Schriften. 



* gest. Apr. 2!) (OL). 



Young;, Matthew. — Dr. Theol., 

 Fellow des Trinity College in Dublin seit 

 1775 u. dann Prof. d. Physik an demsel- 

 ben von 178 6 bis zu seiner Ernennung 

 7Aini Bischof von Clonfert u. Kilmacduach 

 in Irland (BD) (KEC), 



geb. 1750, County Roscom- 



ruon, Irland, 



gest. 18 00, Nov. 28, Withworth, Lan- 

 cashire.* 

 An inquiry into Ihe phenomena of sounds and 

 musical strings, 8°, Dublin 1784. An analysis 

 of Ihe principles of natural philosophy, 8°, 

 Lond. 1803 (posth.). — A synlheticai demon- 

 stration of the ruio for the quadrature of sim- 

 ple curvcs in the analysis per aequationes ter- 

 minorum numero infinitas (Tr. Iri.sh Acad. 1, 

 1787). An inquiry into the different modes 

 of demoüstralion , by which the veloeity of 

 spouting fluids has been invosligated (Ib. !I, 

 1788). 'ihe origin and theory of the Gothic 

 arch (fb. II J, 1790). Demonstration of Isaae 

 Newton's theorem for the correction of sphe- 

 rical errors in the object glasses of telescopes 

 (Ib. IV, 1792). Remark.s on veloeity with 

 whicli Huids issue from apertures in the ves- 

 sels which contain them (Ib. YII, 1800). On 

 Ihe force of testimony in e.stablishing facts 

 contrary to analogy (Ib. id.). On the preces- 

 siou of Ihe equinoxes (Ib. id.). On the nura- 

 ber of the priiniUve calorific rays in solar 

 light (Ib. id.). 



* Am Zuni.eiikiebs. 



Young, Pielro Tommaso. — Erst 

 iiin (oscanischeuHofe lebend, daiui in Wien 

 unter d. Kaisern Loopold IL u. Friinz 

 Hoftath, geh. Cabinelssecrelär, Votsleher 

 d. kaiserl. Privatbibiiolhek u. Schatzmei- 

 ster d. Ordens d. eisernen Krone (ON), 

 geb. 17 64, Juni 28, Livorno,* 

 gest. 18 29, Febr. 14, Wien. 

 Do ignivomorum monliutn et terrae motuum 

 natura etfectibusque ex inde profluentibus, Pi- 

 stoja 1782. —Belletristisches. 



* Sein Vater war ein Schotte. 



Young, Thomas. — Dr. Med. (Göt- 

 lingen 1795). Von 1787 bi.s 1792 Hausleh- 

 rer zu Voungsbury in Hcrlfordshire, dann, 



nachdem er in London, Edinburgh u. Göt- 

 tingen Medicin studirl, 1797 seinen Onkel 

 R. Brock lesby (siehe Diesen) beerbt, 

 u. einige Jahre in Cambridge u. Bristol pri- 

 vatisirt hatte, seit 1 8 00 pract. Arzt in Lon- 

 don, dabei von 1801 bis 1804 ProL d. 

 Physik an d. Roy. Institution, später (1 8 09 

 — 10) Lector am Middlesex-Hospital u.. 

 von 1811 bis zu seinem Tode Arzt am St. 

 Georges Iiospilal. Mitgl. u. seit 18 02 Se- 

 creliir (foreign Secr.) d. Roy. Society. Mitgl. 

 u. seit 18 18 Secret. d. Board of Longi- 

 tude. Ausvviirt. Mitgl. d. Pariser Acad. ür- 

 .vprüngl. Quäker wie seine Aeltern (Journ. 

 Roy. Instit. \l) (KEC) (Arago, Oeuvr. biogr. 

 T. r; (LifeofTh. Y. by G. Peacock, 8°, 

 Lond. 1855;, 



geb. 17 73, Juni 13, Milverton, Somer- 

 setshire, 



gest. 18 29, Mai 10, London. 

 Diss. de corporis humani viribus conservatri- 

 cibus, 8*^, Gotling. 1 796. A syliabus of a course 

 of leclures on natural and experimental phi- 

 losophy, 8", Lond. 1802. A course of leclures 

 on natural philosophy and the mechanical 

 arts, 2 vol. 4", Ib. 1807. Elementary Illustra- 

 tion of Ihe celeslial mechanics ofLaplace; with 

 soine additions relating to the motions of wa- 

 ves, and of sound, and to Ihe cohesion of 

 fluids, 8", Ib. 1821. — Obss. on Vision (Phil. 

 Tr. 1793). Outlines of experiments and inqui- 

 ries respecling sound and light, containing 

 1 ) The menagement of the quantily of air dis- 

 charged through an aperture ; 2) The deter- 

 minalion of the direclion and veloeity of a 

 stream of air proceeding from an orifice ; 



3) Ocular evidence of Ihe nature of sound; 



4) The velocily of sound , 5) Sonorous cavi- 

 tios ; 6) The degree of divergence of sound ; 

 7)Thedecayof sound ; 8)Theharraonic sounds 

 of pipes ; 9) The vibrations of different elastic 

 fluids; 10) The analogy between light and 

 sound ; H) The coalescence of. musical sounds ; 

 12) The frequency of vibrations constituling 

 a given note ; 13) The vibrations ofchords: 

 1 4) The vibrations of rods and plates ; 15) The 

 human voice ; 16) The temperament of musical 

 intervals fib. 1800). On the mechanism of the 

 eye (Ib. 1801). On Ihe theory of light and co- 

 lours (Ib. 1802. — In dieser von 1801 datiren- 

 den Abhandl. die wichtige Entdeckung der! n- 

 terferenz des Lichts.) Anaccountof some 

 cases of the production of colours, not hilherto 

 described (Ib. id ). Experiments and calcu- 

 lations relative to physical oplics (Ib. 1804). 

 An essay on the cohesion of fluids (Ib. 1805). 

 Ilydraulic investigations, subservient to an 

 intended Croonian lecture on the mot'on of 

 the blood (ib. 18C8). On the functions of the 

 heart and arlerie.s (Ib 1809). A numerical ta- 

 ble of elective atlractions, with remarks on 

 the fequonces ot double decomposilions (Ib. 

 id ) Re.marks on the empicyment of oblique 



