Demy post 8vo, cloth, post free, 5s. 



A TREATISE ON THE 



TRANSIT INSTRUMENT, 



As applied to the Determination of Time, for the use of Country Gentlemen. 



By LATIMER CLARK, M.LC.E. 



A popular description of the method of obtaining accurate Greenwich time by 

 the Transit Instrument. It also contains Tables of the Transit of the principal 

 Stars for 1882, calculated in ordinary Greenwich time. 



A. J. Frost, 6 Westminster Chambers, London, S.W. 



This day is published, 8vo, cloth, 883 pages, with 88 Illustrations (drawn to 

 scale), £1 Is. 



A TREATISE ON THE DISTILLATION OF COAL-TAR 



AND AMMONIACAL LIQUOR, 



AND THE SEPARATION FROM THEM OF VALUABLE PRODUCTS. 



By GEORGE LUNGE, Ph.D., F.C.S., 

 Professor of Technical Chemistry in the Federal Polytechnic School, Zurich. 



By the same Author, 

 A THEORETICAL AND PRACTICAL TREATISE 



OX THE 



MANUFACTURE OF SULPHURIC ACID AND ALKALI. 



3 vols., £4 16s. 

 John Van Voorst, 1 Paternoster Row. 



SCIENCE AND ART DEPARTMENT. 

 NORMAL SCHOOL OF SCIENCE AND ROYAL SCHOOL OF MINES, 



SOUTH KENSINGTON and JERMYN STREET. 



The Session 1882-1883 will open on October 2nd, 1882.— The Prospectus 

 may ba. obtained from the Registrar, Normal School of Science, South Kensing- 

 ton, S.W. 



THE LONDON, EDINBUEGH, AND DUBLIN 



Philosophical Magazine and Journal of Science. 



A Journal devoted to Physics, Astronomy, Mechanics, Chemistry, Mineralogy, 

 and the Allied Sciences. Monthly, price 2s. 6d. ' 

 Complete sets (in Numbers) may be obtained at the following prices : — 

 A set of the First Series, from 1/98 to 1826 (wanting a few platesj, in 6S 

 volumes. Price ,£15. 



The Second Series, from 1827 to 1832, in 11 volumes. Price £2 4s. 

 The Third Series, in 37 volumes, from 1832 to 1850. „ £6. 



Taylor and Francis, Red Lion Court, Fleet Street, E.C. 



The Annals and Magazine of Natural History. 



Including Zoology, Botany, and Geology. — Monthly, price 2s. 6d. 



Complete sets (in Numbers) may be obtained at the following prices :— 



The First Series, in 20 volumes, from 1838 to 1847. Price £10. 



The Second Series, in 20 volumes, from 1848 to 1857. „ £10. 



The Third Series, in 20 volumes, from 1858 to 1867. „ £12. 



Taylor and Francis, Red Lion Court, Fleet Street, E.C. 



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