HENRY SOTHERAN & CO., 140, STRAND, W.C, AND 43, PICCADILLY, W. 425 



8339 GEIiLIBBAND (Henry ; Gresham Prof. Astronomi/, Oxon.) A DISCOURSE Mathematicall 

 on the Variation of the Magneticall Needle. Together with its admirable Diminution 

 lately discovered, etc., with diagrams^ sm. 4to. (pp. 22), sewn {title wanting, and last I. badly 

 stained and slightly defective) ; very rare, £2. 2* W. Jones, 1635 



The only edition published of this rare and important little work, which contains the discovery of the secular variation 

 of the magnetic declination— a fact unknown to the author's biographer in D. N. E., who unjustly describes him as 'a 

 plodding industrious mathematician without a spark of genius,' instead of a continuer of our national pioneer work in 

 magnetism and electricity. 



8340 : Trigonometria BritaNNICA : sive de Doctrina Triangulorum Libri II, quorum prior 



continet Constructionem Canonis Sinuum, Tangentium, et Secantium, una cum Logaritnmis 

 Slnuum et Taneentium ad Gradus et Graduum Centesimas et ad Minuta et Secunda Centesimis 

 respondentia, ab Henrico Briggio compositus ; posterior verb Usum sive Applicationem Canonis 

 in Kesolutione Triangulorum . . . e Geometricis Fundamentis petito, Calculo facillimo . . 

 exhibet ab Henrico Gellibrand ; with numerous diagrams, folio, old calf extra (fine copy) ; 

 RARE, £2. 2s Goudce, P. Rammase7iius, 1633 



The first complete trigonometrical tables, containing the natural sines, tangents, and secants to the hundredth 

 part of a degree and to 15 places, wliich 'have never been sui^erseded by any subsequent calculations.' 



' Perhaps the greatest work of this kind, all things considered, that ever was executed by one person.' — Hutton. 



8341 GEOLOGICAL MAGAZINE (The), or Monthly Journal of Geology, with which is 

 incorporated ' The Geologist,' edited by T. R. Jones and Henry Woodward, f.r.s., 

 with numerous fine lithographs of fossils, woodcuts ^ etc. ; complete from the beginning 

 in 1864 to 1911, with Index 1864-1903, by E. S. and H. Woodward, f.r s., 49 vols. 

 8vo. vv. 1-33 and Index in the original cl., and the rest in parts as usual (scarce), 

 £22. 105 1864-1911 



See No. 8355 post for its forerunner ' The Geologist '. 



8342 RECORD for 1874-7, 1879, and 1880-4, vol. I ; an Account of WORKS on GEOLOGY, 



Mineralogy, and Paleontology published during the Year, edited by William Whitaker, 

 F.R.S. , 6 vols. 8vo. cL,£].ls (p. £4. 15*) 1875-81 



A valuable bibliography of geological works, with descriptive and critical notes, by the Editor, W. Carruthers, f.r.s., 

 F. Drew, R. Etheridge, A. H. Green, f.r.s., G. A. Lebour, L. C. Miall, f.r.s., H. A. Nicholson, f.r.s., F. W. Rudler, 

 William Topley, f.r.s , and others. 



8343 FOR 1874 ONLY, 8vo. cl., 4s 1875 



A FINE SET COMPLETE TO DATE : 



8344 SOCIETY OF LONDON, PUBLICATIONS of the, a complete set from 



the beginning in 1811 to 1911, viz. : Transactions, complete from 1811 to their 

 conclusion in 1856, 12 vols. 4to. hf. green morocco extra, t. e. ^., '11-56 : Proceedings, 

 COMPLETE from 1826 to their conclusion in 1845, 4 vols. 8vo. hf. green morocco extra, 

 t.e.g., '34-46: Quarterly Journal, complete from 1845 to Nov., 1911, 67 vols. 8vo. 

 vv. 1-27 in hf. green morocco extra, t. e. g., vv. 28-42 in cl., and vv. 43-67 in parts, 

 '45—1911: Geological Literature, Vols. 1-17, 8vo. sewn, '94-1910: Ormerod's 

 Geological Index, with Supplement, 8vo. cl, '70: Woodward (Horace B., F.B.S.) 

 History of the Geological Society of London, 8^0. cl., 1907 — in all 102 vols. 8vo. 

 and 4to., tvith very numerous plates and other illustrations (a very fine set) ; very 

 scarce, £50. 1811-1911 



Complete sets such as the above are of very rare occurrence. The present one is moreover in exceptionally line condition. 



A complete set to 1910: 



8345 '■ , JOURNAL of the, complete from its beginning in 1845 to 1910, 



with Index to vv. I — L, numerous plates, maps, etc., 66 vols. 8vo. cl., and 4 parts, sewn, 



(sound LIBRARY SET) ; SCARCE, £18. lOs 1845-1911 



8346 Another Set, complete from its beginning in 1845 to Aug., 1910, with 



numerous plates, maps, etc., 60 vols. 8vo. hf. morocco gilt, t. e. g., and 21 parts, sewn 

 (fine set), £25. 1845-1910 



8347 Another Set, from 1863 to August 1909 (Vols. 19-65), with Index to vv. 



1-50, Ormerod's Geological Index, with Supplement, and Centenary Vol., with 

 numerous plates and other illustrations, 50 vols. 8vo. the first 13 vv. in hf. red morocco 

 gilt, and the rest sewn as issued, £10. 10s 1863-1909 



8348 A Series from 1871 to August, 1909 (Vols. 27-66), with Index to vv. 1-50, 



and Centenary Vol., 41 vols. 8vo. the first 14 vv. in hf. calf, and the rest sewn as 

 issued, £7. 105 1871-1909 



8349 , TRANSACTIONS of the, from their beginning in 1807 to 



1842, with numerous coloured and other plates and maps, 11* vols. 4to. hf. brown calf gilt 

 {nice series) ; very scarce, £15. 1811-42 



Nearly a complete set, as only one more volume was issued. It includes the researches and writings of Conybeare, 

 Buckland, MacCuUoch, Phillips, Babington, and most other eminent geologists of the period. 



8350 (Manchester), Transactions of the, complete from the beginning in 1841 to 



1901, laith numerous plates (many coloured or folding), 26 vols. 8vo. and 7 parts, 18 vv. in 12 hf. 

 morocco, t. e. g., and the rest in parts as issued (scarce), £7. lOs 1841 — Manchester, 1901 



