HENRY SOTHERAN & CO., 140, STRAND, W.C, and 43, PICCADILLY, W. 765 



15221 TELFORD (Thomas, c.e.). Life of, written by himself, containing a Descriptive Narrative 

 of his Professional Labours, edited by John Rickman, one of his Executors, with Preface, 

 Supplement, Annotations, and Index, with vignettes on steel and plate of medals ^ thick 4to., also 

 Atlas, containing 83 plates, roy. folio— 2 vols. hf. cl., £1. 5* (p. £8. 8s) 1838 



' In this volume Telford's accounts of his various enf^ineering enterprises, great and small, arc ample and luminous. 

 Rickman added biographical tiaits and anecdotes of him. The supplement contains many elucications of his professional 

 career and a few of his personal character, among the former being his reports to Parliament, etc., and those of 

 Parliamentary Commissioners under whose supervision some of the most important of his enterprises were executed. In 

 one of the apjKiidixes his poem on ' Eskdale' is reprinted. There is also a copy of his will.'— L*. X. B. 



15222 TEBZI (Luigi) Gnomonica Grafica, ossia Metodo facile per disegnare ogni Sorta d' Orologi 

 SoLARi SENZA I'Uso della BussoLA, e preceduto dalle Nozioni della Sfera Celeste ; with 17 plates 

 {% folding), 8vo. sewn, 5s Torino, 1823 



15223 THALl^N (Tobias Robert; Univ. Upsala) Memoire sur la Determination des Longueurs 

 d' Onde des Raies Metalliques ; with large folding plate, 4to. (pp. 38), sewn (scarce), 5s 6d 



Upsal, 1868 

 The author here advocates wave-length as the standard of measure in spectroscopy, against the untrustworthy 

 refraction spectrum used by o Kirchhoft'. This method was adopted in the same year in the great map of the 'normal 

 solar spectrum, published by Angstnim and the author. 



15224 Sur le Spectre du Far obtenu h I'Aide de I'Arc ]£lectrique, 4to. (pp. 49), sewn, 3s 



ibidem, 1885 



15225 Om Spektra, tillhorande Yttrium, Erbium, Didym och Lanthan; with folding plate, 



roy. 4to. (pp. 24), sewn, 3s Qd Stockholm, 1874 



15226 TH^NARD (Louis Jacques Baron; deVInstitut, F.i2.^.) TraitE de Chimie, Elementaire, 

 Th^oriquc et Pratique, 2^ Edition, revue et corrig^e ; ivith plates, 4 vols. 8vo. boards, uncut {nice 

 copy), with fine bookplate of Dr. Priestley, 5s 1817-18 



15227 SixiEME [DERNiiiRE] EDITION [augment6e], avec un Essai sur la Philosophie Chimique 



et un Precis sur I'Analyse, 5 vols. ; with Atlas, containing 21 folding plates— Q vols. 8vo. hf. calf 

 gilt, 12s 18345 



'Th^nard's Traite de Chimie, a text-book which was most widely used, thanks to the happy synoptical arrangement of 

 its contents, was of great merit.*— Pro/. E. v. Meyer. 'Malgre les recentes decouvertes, cet ouvrage jouit encore 

 aiyourd'hui d'unegrande autorite. '—/iior/r. Gen. 



15228 Treatise on the General Principles of Chemical Analysis, translated by Arnold 



Merrick, ^vith 3 plates and folding table, 8vo. hf. calf {scarce), \0s 6c? 1818 



The author discovered hydrogen'peroxide, and in 1811, jointly with Gay-Lussac, the elementary analysis in chemistry. 

 See Nos. 8314-15, ante. 



V. Memoires de Physique et de Chimie de la Societe d'ARCUEiL, No. 11743 ante. 



15229 THEODOSII Tripolitse Sph^ricorUxM Elementorum Libri III, ex Traditione [Francisci] 

 Maurolyci, Messanensis Mathematici. Menelai Sph^ericorum Libri III, ex Traditione 

 eiusdem, Maurolyci Sph.ericorum Libri II. Autolyci de Spii^era qua? movetur Liber. 

 Theodosii de Habitationibus. Euclidis Ph^.nomena brevissime demonstrata. Demonstratio 

 et Praxis trium Tabellarum sc. Sinus recti, Fcjccundie et Beneficse ad Sphffiralia Triangula 

 pertinentium. Compendium Mathematics mira Brevitate ex clarissimis Authoribus. Maur- 

 olyci de SPHiERA Sermo ; with vignette of armillary sphere on title, and numerous diagrams on 

 margin, folio, unbound [badly water-stained, and title slightly defective); excessively rare, 

 £3. 3* {col.:) Messanoi, Petrus Spira, 1558 



'L'edition. ayant 6te couipletement perdue dans un naufrage, ne fut reimprimee que longtenips apres la mort de 

 Maurolico, a I'aide d'un exemplaire retrouv^ en \&8\.'—Biogr. Gen. 



'Ce volume est si rare en Allemagne, que, malgre le temoignage de Nic. Heinsius, I'existence en a paru douteuse 

 ii 'Ehert.'— Brunei. The Libri copy fetched 130 francs in 1857. 



' II Sig. Libri die pure nella sua storia cidi una breve ma esatta notizia sulla vita e le opere del Maurolico, non fa 

 menzione di questo libro rarissimo. Anzi mi sembra che questa opera sia appunto quella raccolta d'autori greci di cui il 

 Maurolico nella sua cosmogratia annunziava la traduzione, e della quale il medesimo Sig. Libri deplora la perdita.'— 

 Riccardi. 



15230 Sphsricorum Libri III, a Christophoro Clavio, s.j., perspicuis Demonstrationibus 



ac Scholiis illustrati : item eiusdem Christophori Clavii Sinus, Linere Tangentes et Secantes, 

 Triangula Rectilinea atque Sphierica ; with numerous diagrams, 4to. old v^hite vellum {some II. 

 browned, otherwise a fine copy), 15* Eomcc, Dom. Basa, 1586 



15231 THETI [o TETI] (Carlo) DiscoRSi delle Fortification i, Espugnationi, e Difese delleCittk, 

 e d'altri Luoghi, oue diffusamente si demostra, quali debbano essere i Siti delle Fortezze, le 

 Forme, i Recinti, Fossi, Baloardi, Castelli, ed altre Cose a loro appartenenti, con le Figure di esse ; 

 hora di nuovo ricorretti ed ampliati ; with full-page plans, and numerous v'ood cuts, large folio, old 

 vellum extra, with Jesuit arms on sides {back damaged, otherwise a very sound and clean copy), 

 £1- 1* Venetia, Franc, de Franceschi Senese, 1589 



' Scarce ; unknown to Cicognara.'— Ifbn Catalogue The above edition is the best ; it was reprinted in 1017. The work 

 is interesting for containing illustrations and descriptions of contemporary surveying instruments. The above copy 

 contains the cancelled title, dated 158S. 



15232 THEVENARD (Vice-Amiral Antoine Jean Marie Comte) Memoires relatifs h la Marine ; 

 icith 33 folding copperplates, 3 maps, and 21 folding tables, 4 vols. 8vo. old calf gilt (SCARCE), 

 £1. \s Ak VIII [1800] 



' C'est Thevenard qui donna le plan des deux premieres canonnit'res faites en France.' — Biog. Gen. 

 The work deals mainly with naval architecture. Vol. I contains an interesting memoir on the origin of the mariner's 

 compass, and v. II one on the Language and Antiquities of Brittany, 



There was no copy of the work in the Scott Library, nor is there one in that of the Institution of Naval Architects. 

 152S3 THIBAUT (P., Chymist to the French King) The Art of Chymistry, as it is now practised, 

 now translated by a Fellow of the Royal Society, 12mo. sewn (rare), 15s J. Starkey, 1668 



Unknown to Watt. Brunet, Graesse, Poggendorff, and others, and containing much pharmaceutical matter ; also at end, 

 ' A Little Treatise of Chymistry : or, an Abridgement of the precedent Treatise ' (pp. 31). 



