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



•15328 TOURASSE (— ), et F. N. MELLET : EssAi sur les Bateaux a Vapeur appliques a la 

 Navigation Interieure et Maritime de I'Europe, sur les Bateaux Aqua-Moteurs, et 

 particulierement sur le TOUAGE par le Vapeur, ou Remorque a Points Fixes, accompagn^ de 

 Considerations sur les Transports par Terre et par Eaux et sur les Chemins de Fer; with 8 plates 

 {7 folding), 4to. hf. morocco {scarce), lOs 6d 1828-9 



Advocating a system of steam towing against steam navigation on rivers. The work is also interesting for giving an 

 account of oqna-motenrs, tow-boats worked by the current of a river ; and for its remarks on early French railwaying. 



15329 TOWER (Olin Freeman, Western Reserve Univ.) The Conductivity of Liquids : Methods, 

 Results, Applications, and Theoretical Considerations, with 20 illustrations, large 8vo. c/., 4s 

 (p. 7s 6d nett) Easton, Pa., 1905 



15330 [TOYNBEE (Capt. Henry, f.r.a.s.)] Discussion of the Meteorology of the Part of the 

 Atlantic lying North of 30° N. for 11 Days ending Feb. 8, 1870, by Means of Synoptic Charts, 

 Diagrams, and Extracts from Logs, with Remarks and Conclusions, with charts, 4to. sewn, 3$ 1872 



15331 [ ] Remarks explanatory of the Charts of Meteorological Data for the Ocean 



District adjacent to the Cape of Good Hope, with diagrams, roy. 4to. cl , 3-s 1882 



15332 Report on the Gales experienced in the Ocean District adjacent to the Cape of 



Good Hope, with 20 plates, roy. 8vo. cl., 3s ' 1882 



15333 TRATMAN (Edw^ird Ernest Russell) Railway Track and Track Work ; 2nd Edition, 

 with Supplementary Chapters on ' Signals and Interlocking ' and ' Street Railway Track ', with 

 226 ^lustrations and ^folding tables, 8vo. cl., 6.5 (p. 14s nett) New York [1901] 



15334 TREVITHICK (RiGhard ; inventor of the Locomotive Engine). Life of, with Account of his 

 Inventions, by Francis Trevithick, c.e., with portrait by'W. Holl, 10 plates {chiefly folding), 

 and numerous pretty woodcuts by W.J. Welch, 2 vols, large 8vo. in 1, cl. {o.p.), 15s (p. £1. 16s) 1872 



Containing a very interesting account of the author's numerous inventions, e.g. the first steam carriage to carry 

 passengers, at Redruth (1801), the first locomotive tried on a railway ('04), his ' Catch-me-who-can ' locomotive engine, 

 tried on the London Railway, on Torrington Square, then a waste piece (08), the first Cornish Engine ('12), improvements 

 in the propulsion of steam boats, etc. etc. 



' Trevithick's achievements, somewhat obscured by the eulogists of Watt and Stephenson, were first brought into a 

 just prominence in the Life by Francis Trevithick.'— D. N. B. 



THE FIRST STEAM ENGINE IN SWEDEN : 



15335 TRIEWALD (Marten ; f.r.s.) Kort Beskrifning, om Eld- och Luft-Machin wid 

 Dannemora Grufwor ; with fine and very large copperplate of a Giant Newcomen Engine, 

 sm. 4to. oldhf. calf {\TS.^Y rare), £2. 10s Stockholm, 1734 



This work appears to be very rare. It was unknown to Poggendorff, who mentions however the author's other works, 

 nor is it mentioned by other bibliographers. 



According to R. Stuart {HUtorical and Descriptive Anecdotes of iSteam Engines, Vol. 11. , p. 618). the anthor, who is not 

 included in the Biograj)Me Generale, 'came to England in 1716 to obtain information regarding the mode of mining 

 followed at Newcastle. He remained in the neighb"urhood for some years, and Avas employed as an engineer at a coal- 

 mine; he was a pupil of Desaguliers, and some of his improvements on the diving bell are described in the Doctor's 

 Experimental Philosophy. He returned to Sweden in 1726, and erected an atmospheric engine [swpral, the parts of which 

 he got fabricated in England. He was captain of mechanics, and military architect to the King of Sweden ; and was in 

 correspondence with some of his friends in the Royal Society until his death. He invented a mode of warming 

 conservatories by hot water.' According to the Record of the Roycd Society, he was elected a Fellow in 1731. 



15336 TROILI (Giulio, da Spinlamberto) Paradossi per pratticare la Prospettiva senza Saperla, 

 Fiori, per facilitare I'lntelligenza, Frutti, per non operare alia Cieca [nuova Edizione, coU' 

 Aggiunta della III*. Parte]; with numerous woodcuts and diagrams, folio, boards (rare), 15s 



Bologna, Gios. Lonohi, 1683 



' Raro.'— iJiccar(7i. The third part consists of 'Prattica del Parallelogrammo da Designare del P. Christoforo 

 Scheiner, s j.' {v. also Nos. 14719-20 ante). 



15337 TROMMSDORFF ( Johann Bartholomaus, Univ. Erfurt) Geschichte des Galvanismus, 

 Oder der galvanischen Elektricitat, vorzUglich in chemischer Hinsicht, 2. Auflage, 8vo. boards, 

 3s 6d Erfurt, 1808 



15338 TROPFKE (Johannes) Geschichte der Elementar-Mathematik in systematischer 

 Darstellung; with 35 illustrations, 2 vols, large 8vo. cl., with Dr. Emil Reich's bookplate, 14s (p. 

 M. 22) Leipzig, 1902 3 



15339 TROTTA (Giovanni Battista, s.J.) Nuovo Horologio Notturno per Mezzo delle'STELLK, 

 tanto neir Hore Astronomiche, quanto nell' Hore Italiane e Babiloniche, con Aggiunta anco dell" 

 Horologio Polare corretto, ed accresciuto ; e dell' Horologio della Luna, sm. 4to. sewn {rare). 

 15s Napoli, 1651 



15340 Praxis Horologiorum Expeditissima, per quam varia Horolngiorum Genera, 



praesertim Vertical ia, per novas Tabulas facillime describuntur ; with diagrams, 4to. contemporary 

 vellu77i {binding wormed) ; rare, £1. 5s ' ibidem, 1631 



Valuable for containing over 400 pages of Tables. 



15341 TRUSSED CONCRETE STEEL CO., Kahn System Standards : a Hand Book of Practical 

 Calculation and Application of Reinforced Concrete, compiled and published by, 2nd Edition, 

 enlarged, with numerous illustrations {many fidl-page), large post 8vo. flexible roan, g. e. {name 

 cut off title), 4s 6d {p. 7 s6d nett) ' . Detroit, 1908 



'Presenting to the designer tables and information in such form as to be immediately available for use in actual 

 designs, and at the same time to have these tables founded on scientific formulae app«oved by our best engineering 

 practice.' — Preface. 



15342 TXJRNBULL (William) Dredge's Suspension Bridge explained on the Principle of the 

 Lever, with Specification of the Quantities of Material used in the Suspension Bridge at Balloch 

 Ferry, Dunbartonshire, and an Isometrical Projection, by James Dredge, of Bath, with folding 

 frontispiece and diagrams, 8vo. hf calf neat, 5s 6d 1841 



James Dredge was the first to employ the tapering chain and the oblique susi)ending rods in suspension bridges. 



15343 Treatise on the Strength, Flexure, and Stiffness of Cast Iron Beams and 



Columns, with Tables of Constants, 8vo. hf. cl., Zs 1832 



