208 HENRY SOTHERAN & CO., 140, STRAND, W.C., ANB 37, PICCADILLY, W. 



4117 BOY \latine BEGrlUS] (Hendrik van, Univ. Utrecht) PHILOSOPHIA NATURALIS ; in qua tota 

 Rerum Universitas, per clara et facilia Principia, explanatur; with fine portrait by Matham, plates, 

 and numerous woodcuts, cr. 4to. old calf (slightly water-stained, but sound copy], 10* Qd 



Amstelcedami, Lud. et Daniel ELZEVIR, 1661 



Pp. 242-57 contain an interesting account of the magnet, which is not mentioned in Sir Francis Ronalds's Catalogue. 



4118 BOY (Maj.-Gen. William, F.RS.) ACCOUNT of the MEASUREMENT of a BASE on HOUNSLOW- 

 HEATH, with 4 folding plates of instruments, etc. by Basire, folding map, and tables, 4to. (pp. 94), 

 sewn (rare], 10s 6d 1785 



' The measurement of this base may be considered to be the foundation of the important Trigonometrical Survey of Gt. 

 Britain [3. v., Nos. 3134-6].' Prof. Todhunter. 



1 Roy selected Hounslow for a base line, which was measured in the summer of 1784 three times over by means of cased 

 glass tubing, seasoned deal rods, and a coffered steel chain made by Ramsden, the length being 27,404 feet, and the dis- 

 crepancy between the several measurement under 3 inches. This work excited considerable scientific interest, the King, 

 the master-general of the ordnance, and many distinguished savants visiting Hounslow during its progress.' Col. Vetch, R.E. 



4119 ACCOUNT of the TRIGONOMETRICAL OPERATION, whereby the DISTANCE between the 



MERIDIANS of the ROYAL OBSERVATORIES of GREENWICH and PARIS has been determined, with 

 9 folding plates on copper of instruments, etc. by Basire, and 2 folding maps, 4to. (pp. 161), sewn, 

 8s Qd 1790 



An account of the common English and French survey of 1787. ' In the summer of 1787 Roy carried his triangulation 

 from the Hounslow base to the Kentish coast, and on 23 Sept. met the French commissioners at Dover, and, after a con- 

 ference between them, the observations connecting the English with the French triangulations were made from both sides 

 of the Channel. A base of verification, 28,535 feet long, was measured on Romney Marsh under Roy's direction, and 

 found to differ only 28 inches from its calculated length as determined by the triangulations of the Hounslow base.' Col. 

 Vetch, R.E. 



4120 - - THE SAME ; with ACCOUNT of the MODE proposed to be followed in the TRIGONOMETRICAL 



See MASKELYNE, post. 



4121 BOYAL COLLEGE of CHEMISTBY, REPORTS of the, and RESEARCHES conducted in the 

 LABORATORIES, 1845-7, 8vo. cl. (scarce), 10s Qd 1849 



The only volume ever published by this short-lived society, comprising Remarks on the Importance of cultivating 

 Experimental Science in a National Point of View, an Introduction, both by A. W. v. HOFMANN, F.R.S., and Researches in 

 Inorganic and Organic Chemistry by the same (on the volatile organic bases), FREDERICK FIELD, C. B. MANSFIELD, H. M. 

 NOAD, F.R.S., WARREN DE LA RUE (on cochineal), and others. 



A VERY FINE SET : 



4122 SOCIETY of CANADA, PROCEEDINGS and TRANSACTIONS of the, COMPLETE from the 



beginning in 1882 to 1899 (ORIGINAL SERIES, 12 v.4to., and SECOND SERIES, Vols. 1-5,5 v.impl.Svo.), 

 with, numerous portraits, plates, woodcuts, and maps, 17 thick vols. handsomely bound in crimson 

 morocco extra, with initials V.R. inlaid in white and blue morocco, g. e., 10. 10s 



Montreal, 1883 Toronto, 1899 



This beautiful set was presented by the Society to QUEEN VICTORIA, and each volume bears the Queen's initials on the 

 sides. The first volume also contains official copies of letters from Lord Lansdowne to Lord Derby, and from the Society's 

 Secretary on presenting it to the Queen. 



4123 VOLUME IV only, with 12 plates, besides woodcuts, roy. 4to. cl., 5s Montreal, 1837 



of EDINBUBGH v. EDINBURGH (No. 1148), ante. 



of LONDON, PHILOSOPHICAL TRANSACTIONS of the v. PHILOSOPHICAL 



TRANSACTIONS (No. 3603), ante. 



4124 BUDIMENTUM ANGLO-LATINUM GRAMMATICS LITERALIS et NUMERALIS, in usum SCHOL^ 

 REGIS WESTMONASTERIENSIS ; with diagrams, 8vo. fine copy in contemporary sheep (rare), 10s Qd 



Londini, ex Officina Eliz. Redmayne, 1688 



The second part of the work contains Arithmetic, and is interesting as showing the standard of mathematical 

 knowledge deemed necessary for Westminster School at the period of the Revolution. 



4125 BUDIO (Ferdinand, Zurich) GESCHICHTE des PROBLEMS von der QUADRATUR des ZIRKELS von 

 den altesten Zeiten bis auf unsere Tage ; illustrated, 8vo. sewn, 4s Leipzig, 1892 



By showing the transcendental value of the quantities e and IT, HERMITE in 1373 finally proved the impossibility of the 

 squaring of the circle by elementary geometrical means, the arithmetical solution of the problem having long been known 

 as impossible. 



BUDOLF (Christoph) Die Coss v. STIFEL, post. 



4126 BUFFINI (Paolo) Sopra la DETERMINAZIONE delle RADICI nelle EQUAZIONI NUMERICHE di 

 QUALUNQUE GRADO, impl. 4to. (?) LARGE PAPER ; sewn, uncut (rare), 15s Modena, 1804 



This work received the prize of the Societd Italiana. 



Added is ' Riflessioni di PIETRO ABBATI intorno al Metodo di Lodovico Lagranga per la Soluzione delle Equazioni 

 Numeriche (pp. 29), Modena, 1804. 



4127 - TEORIA GENERALE delle EQUAZIONI, in cui si dimostra impossible la Soluzione Algeb- 

 raica delle Equazioni General! di Grado Snperiore al Quarto; with 2 folding tables, 2 vols. sq. 

 8vo. contemporary hf. calf gilt (RARE), 1. Bologna, 1799 



Important as first maintaining the impossibility of solving algebraic equations of the fifth or of a higher degree, the 

 proof of which was given by Abel in 1826. 



'Though inconclusive, Ruffini's demonstrations are remarkable as containing anticipations of Cauchy's theory of 

 groups. 'Prof. Cajori. 



4128 BUMFOBD (Sir Benjamin Thompson, Count, F.R.S.) ESSAYS, POLITICAL, ECONOMICAL, 

 and PHILOSOPHICAL, new Edition, with numerous plates on copper and wood, besides woodcuts, 

 3 vols. 8vo. old mottled calf gilt (RARE), 1. 10s 1800-2 



The first collected edition of the author's works. 



4129 ANOTHER COPY (Original Edition), Vols. I, II, and v. Ill pp. 1-191, with numerous 



plates and woodcuts ; sewn, uncut, 1. 1* 1 796 -8[- 1800] 



' Tyndall gave Rumford the credit of travelling with Sir John Leslie over common ground on the subject of radiant 

 heat and of anticipating Thomas Graham in experimenting on the diffusion of liquids, and also for the first accurate 

 determinations for the calorific power of fuel.' 



