cl 



VI 



NATURE 



[March 20, 1879 



CLARENDON PRESS 

 PUBLICATIONS. 



TEXT-BOOK of BOTANY, MORPHO- 

 LOGICAL and PHYSIOLOGICAL. By Dr. JULIUS 

 SACHS, Professor of Botany in the University of Wiirzburg. 

 Translated by A. W. Bennett, M.A. Royal 8vo, half 

 morocco. 31J. 6d. 



GEOLOGYoftheVALLEYoftheTHAMES. 



By JOHN PHILLIPS, M.A., F.R.S., Professor of Geo- 

 logy, Oxford. With Maps and numerous Illustrations. 8vo. 

 2\s. 



VESUVIUS. By Professor Phillips. With 



Maps and Illustrations. Crown 8vo. 10s. 6d, 



BRITISH BARROWS. A Record of the 



Examination of Sepulchral Mounds in Parts of England. 

 By W. GREENWELL, M.A„ F.S.A. With Description 

 of Figures of Skulls, and Remarks on Prehistoric Crania, 

 by G. RoLLESTON, M.D., F.R.S. With numerous Illus- 

 trations. Svo. 25^. 



A HANDBOOK of DESCRIPTIVE AS- 

 TRONOMY. By G. F. CHAMBERS, F.R.A.S. With 

 numerous Illustrations. Third Edition, Enlarged. Demy 

 Svo, 28r. 



LESSONS on THERMODYNAMICS. By 



R, E. BAYNES, M.A., Senior Student of Christ Church, 

 Oxford, and Lee's Reader in Physics. Crown 8vo. ^s. 6d. 



An ELEMENTARY TREATISE on HEAT, 



with numerous Woodcuts and Diagrams. By BALFOUR 

 STEWART, LL.D., F.R.S. , Professor of Natural Philo- 

 sophy in the Ovrens College, Manchester. New Edition. 

 Extra fcap. 8vo. 7J. 6d. 



CHEMISTRY for STUDENTS. By A. W. 



WILLIAMSON, Phil. Doc, F.R.S., Professor of Che- 

 mistry, University College, London. New Edition. Extra 

 fcap, 8vo, 8j, 6d, 



EXERCISES in PRACTICAL CHEMIS- 

 TRY. By A. G, VERNON HARCOURT, M.A., F.R.S., 

 and H. G. MADAN, M.A. Series I. Qualitative Exer- 

 cises. New Edition. Crown 8vo. 7^. 6d. 



The KINETIC THEORY of GASES. By 



H. W. WATSON, M.A., formerly Fellow of Trinity 

 College, Cambridge. Svo. 3^. 6d. 



A TREATISE on ELECTRICITY and 



MAGNETISM. By J. CLERK MAXWELL, M.A., 

 F.R.S., Professor of Experimental Physics, Cambridge. 

 2 vols., Svo. l/. lis. 6d. 



A TREATISE on ACOUSTICS. By W. F. 



DONKIN, M.A., F.R.S., Savilian Professor of Astro- 

 nomy, Oxford. Crown Svo, 7^. 6d. 



Oxford : Printed at the Clarendon Press, and published by 

 Macmillan & Co., London, Publishers to the University, 



NEW VIEWS IN ASTRONOMY. 



Illustrated by Working-Models and by Diagrams, and 

 Demonstrated by Inductive Philosophy. 



MR. JOHN HARRIS having engaged a large and 

 suitable room at the Town Hall (Station Road), Kilburn, 

 for the purpose, hopes to have the working-models, &c., 

 in readiness by Monday, the 24th of March, for those 

 interested in Astronomical Science to inspect them. The 

 models will be at Kilburn Town Hall for (at least) a fort- 

 night. Cards of invitation, with particulars, will be pro- 

 curable from the Secretaries of the principal Scientific 

 Societies, and of the Clubs. 



The preparation of these models has necessitated the expenditure of 

 much time and labour, and, as their purpose is solely to facilitate the cor- 

 rection of certain fallacies and erroneous theories in the present teaching of , 

 astronomical science, Mr. Harris hopes that all those interested in that im- 

 pcrtant department of knowledge will avail themselves of the opportunity 

 thus afforded to inspect them. 



THE FIRST OF THE TWO LECTURES 



(At KILBURN TOWN HALL) on 



"THE CIRCLE AND STRAIGHT LINE," 



By JOHN H.^RRIS, is now ready ; containing: — 



Introductory Remarks on the Nature of Geometry. 



The Genesis of the Circle. 



The Fallacy in Legendre's supposed Demonstration of the Circle's Ratio, 



Price, in cloth, &s. 

 Also, 



"GEOMETRICAL DEMONSTRATION OF 

 THE CIRCLE'S RATIO." 



Price, in wrapper, or. 6a?. 

 WERTHEIMER, LEA, & CO., Circus Place, Finsburj-. 



Just published, free by post for One Stamp. 



The NATURAL HISTORY and SCIEN- 

 TIFIC BOOK CIRCULAR, No. 35, containing important Works 



on ASTRONOMY, CHEMISTRY, MAGNETISM, 

 MATHEMATICS, METEOROLOGY, OPTICS, 

 PHYSICAL SCIENCE. 



W. WESLEY, 28, Essex Street, Strand, London. 



Just published, price \s. post free. 



IS NATURE CRUEL? 



By Rev. H. H. HIGGINS. M.A. 

 Liverpool : GILBERT G. WALMSLEY, 50, Lord Street 



BRYCE-WRIGHT'S LATEST ARRIVALS. 



GEMS. — Two very large Diamonds from the Cape, 35 and 32 



carats weight respectively. 

 MINERALS. — Magnificent Atacamites from Australia; Rit- 



tingerite, Xanthocone, Native Amalgam, Large Topazes 



from Siberia. 

 METEORITES. — Very fine series of Aerosiderites. 

 STONE IMPLEMENTS.— Very fine collection from the 



Valley of the Mississippi. Very rare Pottery from the same 



locality ; also specimens of Moquis Pottery. 



Catalogue oti application. Price Qn& Shilling. 



BRYCE-WRIGHT, 



90, GREAT RUSSELL STREET, BLOOMSBURY, 

 LONDON, W.C 



