HENRY SOTHERAN & CO., 140, STRAND, W.C., AND 43, PICCADILLY, W. 101 



139PO BEECH (Ferdinand, ingcnieur de la marine) MEMOIRS sur les MACHINES h, VAPEUR, et leur 

 APPLICATION a la NAVIGATION, 4to. sewn, u-ith auto, of George fiennie, C.E., F.R.S. (plates 

 wanting), 4s (p. F. 30) 1844 



13991 RAPPORT a I'APPUI du PROJET des MACHINES du BRANDON, 4to. sewn (o.p.), 4s 



(p. F. 15) 1844 



13992 BEEVES (Edward Ayearst, F.R.A.S.. F.R.G.S.) MAPS and MAP-MAKING : Lectures under the 

 Auspices of the Royal Geographical Society, with map in pocket, 4 coloured plates, and 134 wovd- 

 cuts,8vo.cl.,5s B.G.S.,1910 



Describing and illustrating a number of old geodetic and surveying instruments. 



13993 BEGIOMONTANUS ; vel de MONTE BEGIO, recte MULLEB (Joannes) De TRIANGULIS 

 PLANIS et SPH^RICIS Libri V, una cum TABULIS SINUUM, in quibus tota ipsorum Triangulorum 

 Scientia ex primis Fundamentis Geomentricarum farofoi$u*v [sic] absolutissime extructa 

 continetur, oinnia nunc simul in Lucem edita per DANIELEM SANTBECH ; with numerous diagrams, 

 [1561] : SANTBECH Noviomagus (Daniel) PROBLEMATUM ASTRONOMICORUM et GEOMETRI- 

 CORUM SECTIONES VII (De Observationibus TWV tycuvoptvuv ; de Canonibus Primi Motus ; de 

 Rationibus Umbrarum et de Instrumentis Sciotericis ; de Generalibus Magnitudinum Dimension- 

 ibus ; de Ratione Librationis, quse in ducendis Aquis observatur ; de Artificio eiaculandi Spho?ras 

 e Tormentis ; de Observationibus Oeographicis) ; with numerous spirited woodcuts, and diagrams 

 of Astronomical Instruments, Triangulations, Guns and Fortresses, etc. etc., '61 2 vols. folio, old 

 vellum (a few II. browned as usual, otherwise a FINE AND TALL COPY) ; VERY RARE, 3. 3s 



Basileae, per Henr. Petri et Petrum Pernam, 1561 



The iirst work is the THIED EDITION of Regiomontanus's trigonometry, a second having been published in 154C. 

 Appended is 'Tractatus super Propositiones Ptolemaei de Sinubus et Chordis ', by GEORG PEUERBACH (Purbachius), the 

 teacher of Regiomontanus. 



' This is the earliest modern systematic exposition of trigonometry, plane and spherical, though the only trigono- 

 metrical functions introduced are those of sine and cosine '. IF. W. R. Ball. 



' Regiomontanus and Purbach adopted the Hindoo nine in place of the Greek chord of doitUc the arc. Regiomontanus 

 emphasised the use of the tangent in trigonometry, and following oufc some ideas of his master, calculated a table of 

 tangents ... He was the author of a complete treatise on trigonometry, containing solutions of both plane and spherical 

 triangles. The form which he gave to trigonometry has been retained, in its main features, to the present day. . . . 

 Regiomontanus ranks among the greatest men that Germany has ever produced." Prof. Cajori. 



Nothing is known of the author of the second work, who is not mentioned by Montucla or Poggendorff (who mistakenly 

 attributes the work to Regiomontanus), or in other bibliographies. It forms an appendix to the first work, and is 

 especially interesting for its numerous well-executed woodcuts, which include many on artillery bombarding fortresses, 

 which are still based on the contemporary notion that the projectile travels in a straight line, and after its strength is 

 -spent, drops vertically (i-. No. 8212 ante). 



Poggendorft" mentions a Johannes Noviomagus (Jan Bronckhorst), 1404-1570), who for some time professed mathematics 

 at Rostock ; but there is no evidence to connect him with the above Daniel Santbech Noviomagus. 



13994 BEGNAULT (Henri Victor, de VInstitut; F.R.S.) COURS ELEMENTAIRE de CHIMIE, 

 premiere edition ; with several hundred woodcuts, 4 vols. fcap. 8vo. hf. calf gilt, Is 6d [1847-9] 



P.p. 7-55 contain an excellent introduction to crystallography. 



13995 - DEUXIEME EDITION [augmentee] ; with hundreds of woodcuts, 4 vols. fcap. 8vo. hf. 

 morocco neat, 3s %d [1850] 



13996 TROISIEME EDITION ; with hundreds of woodcuts, 4 vols. fcap. 8vo. hf. calf gilt (nice 



copy), ivith auto, of Prof . Hilary Bauerman, F.G.S., 4s 1851 



An admirable treatise which was soon translated into nearly every European language. 



997 ELEMENTARY TREATISE on CRYSTALLOGRAPHY, with 108 woodcuts, 8vo. cl., 3s Qd 1848 



13998 BEGNAULT (Noel, s.j.) PHILOSOPHICAL CONVERSATIONS : or, a New System of Physics, by 

 Way of Dialogue, translated, with Notes, by THOMAS DALE, M.D., with numerous copperplates, 

 3 vols. 8vo. old sheep (backs slightly damaged), 8s 6d 1731 



This treatise on physics, which is still based on Descartes's theory of vortices, was very popular in its time, and 

 contains many interesting experiments. 



13999 BEGNIEB (Edme) DESCRIPTION et USAGE du DYNAMOMETRE, pour connaitre et comparer 

 la Force relative des Homines, celle des Chevaux et de toutes les Betes de Trait ; enfin pourjuger 

 la Resistance des Machines, et estimer les Puissances Motrices qu'on vent y appliquer ; with 

 folding copperplate, 4 to. (pp. 20), sewn (rare), 10s Qd An VI [1798] 



Containing the invention of the spring dynamometer for measuring muscular strength, etc. ' Regnier construisit son 

 premier dynamometre a. la demande de Button et de Gueneau de Montbelliard, qui avaieut reconnu, pour les recherches 

 qu'ilsse proposaient de faire sur la force nmsculaire, 1'imperfection des instruments analogues, prec&Iemment imagines 

 par G. Graham, Desaguliers et Leroy.' Biogr. Gen. 



14000 BEICH (Ferdinand, Bergakademie Freiberg) FALLVERSUCHE iiber die UMDREHUNG der 

 ERDE, angestellt in dem DREI-BRUDERSCHACHTE bei FREIBERG ; with 5 folding plates, 8vo. hf. 

 cl. (scarce), 10s 6d Freiberg, 1832 



The author's was the last of the classic series of experiments made by Robert Hooke, G. B. Guglielmini in 1701, and 

 Benzenberg in 1802 (v. .Vo. 338 ante) to ascertain the Easterly motion of a falling body, caused by the rotation of the 

 earth. All these experiments ' showed, in addition to the predicted Easterly deviation, also a small Southerly displace- 

 ment. For this no satisfactory explanation has yet been given ' (Prof. Cajori). 



14001 BEICHENBACH (Karl Freiherr v.) RESEARCHES on MAGNETISM, ELECTRICITY, HEAT, 

 LIGHT, CRYSTALLIZATION, and CHEMICAL ATTRACTION, on their Relations to the VITAL FORCE, 

 translated and edited, with Notes and Appendix, by WILLIAM GREGORY, M.D., F.R.S. E., with 

 3 folding plates, and woodcuts, 8vo. cl., 6s 1850 



This is the work that contains the author's imaginary discovery of od, a physical force intermediate between 

 electricity, magnetism, heat, and light, to which the phenomena of hypnotism (then ' mesmerism ') are to be due. In its 

 narrower sense it agrees perhaps best with Prof. Forel's neurokymc*. 



The subject may still offer a lield of speculation to the scientilic mystic in connexion with the undiscovered octaves of 

 ether waves. 



It consists of 2 parts, the first treating of ' Physico-Physiological Researches on the Imponderables, in their Relation 

 to the Vital Force ', and the second of ' Magnetic or Odylic Light.' 



The author is generally known as the discoverer of creosote and paraffin. 



