HENRY SOTHERAN & CO., 140, STRAND, W.C, and 37. PICCADILLY, W. 269 



5290 WEBSTER (Thomas, f.r.s., q.c.) The Principles of Hydrostatics, 2ua Ed., enlarged. 

 tcith woodcuts, 8vo. calf gilt, t. e. g., 'Is Qd Cambridge^ 1838 



5291 Third Edition, woodcuts, post 8vg. cl., 2» 6rf 1847 



5292 The THEORY of the E^^UIHBRIUM and MOTION of FLUIDS, /»/«/c, 8vo. c/.. or, hf. cl., 2s M 



Ckimbn'dgc, 1836 



5293 Another Copy, with Principles of Hydrostatics. '35—2 vols. 8vo. iu 1, A/, calf tfUt, 



3s 6d i6.. 1836-5 



The above works were all unknown to the author's bio|{rapber in D. N. B. 



5291 WEBSTEB (William) Compendious Course of Practical Mathematicks, particularly 

 adapted to the Use of the Gentlemen of the Army and Navy, with nunurous copficrpltUcs and 

 tables, :i vols. IGuio. old calf gilt {nice copy), with bookplate of Philip 2iid Earl Utanhopc, FJi.S., 

 6s 6d 1730 



InclmHof; I'ortitlcation, Gunnery, Navijpition, and tlie Theory of Workiii/t a 8liip. 



.'295 T'.'^''® Dfiscription and Cse of a Complete Sett or Cask of Pockkt-Instrimknts: 



containing the Construction of the Heveral Lines laid down on the Plain-Scale, and Sector ; with 

 their A])plication, correct<Ml Ed., 4 copperplates, 8v«). (pp. 61), semi, 4* 1768 



5296 WECKER(Johann Jakob, m.d. ; Basel) Eic.htkks llooKsot lh«' SKCRKTsof Art and NATURE. 

 heint; the Sunnne and Suhstance of Naturall Pliilo»*opliy, uietho«lically di^^Ht*?*! : now much 

 augmented and inlarged by Dr. R. Read. A like work never before in the KngliHli Tongue ; 

 with engraved title btf tiAYWOOD, containing 7 portraits, and numerous iroodcuti, folio, old fMiH' 

 elled calf, newly rebacked {one or two II. of table missing, also nanus scribble <i '■';,'■' 

 very rare, £1. 5* • 



The ' Seci-ets', which h.-ive lie«!ii collecte»l from aliout luOdilTcrviit aulhorH, iiiclu«li? • M^reluof u . . , . 



and how to couutiTfeit them; of meteon«, an hail, rain, snow, thunder, liKhtnin^', trmiH-Mtn. and thr- iikc . 

 naturall inagtck, mathematicks, musick, and a.«ttndoi(y ; Mecreta meclianlcali ; KcciTtii of Hiiorl«, drliKhta an-i 

 etc. etc. etc. 



This English trai-.slatiou, which contains many original contributiuuii by the editor, U \ery rarv ; th« iiibbpri ci>t>y 

 fetched £0. tig. At end is u 3-p. list of Simon Millar's iiublicatioua. 



5297 Les Secrets et Merveilles de Nature, recueillies de divers Autheum. I •• n 



seulement necessaire aux curieu.x, ains ii tous eeux ([ui font jtrofession des ArtM Li 

 subtiles inventions . . . reveu, corrige, et augment^; with numerous woodcuts, tl 



old vellum, \2s (kl I 



* A very curious work, much sought after on account of the singtiUr doctrlDM and aecreUi otwmis 1 



therein '.— lAhri Cutnlogut. 



' Cet uuvras*! est toujours rt'clierche des curieux, i)Our les choseN singulierea <iu'll renferme '.—liioyr. Vmt. 



5298 WEDGWOOD (Hensleigh; philologist; police magistrate, Lambeth) The Principles <,i 

 Geometrical Demonstration, deduced from the Original Conception of Space and Form, 

 diagrams, past 8vo. cl. boards {scarce). As 1M4 



5299 WEDGWOOD (Josiah, f.r.s.. Potter to his Majesty) ADDITIONAL OBSERVATIONS on MakiN(J 

 a Thermometer for measuring the Higher Degrees of Heat, with plate, iUt. (pp. 19), anr/t. 

 (is6d 17H<» 



An account of the author's ingenious invention of a pyrouieter, still employed In s<»me potted—, co mttt l m of cylladet » 

 of i>repared clay, the extent of shrinkage of which indicates the degree of heat In the furnace. 



5300 WEDGWOOD (Thomas ; son of the above : the first photographer : benefactor of Coleridge) 

 Expehi.ments and Observations on the Production of Light an»l Heat from «Iifferent l{«Klie»4. 

 by Heat and Attrition, 4 to. (pp. 20), sewn, 5« l"9l 



' The earliest suggestion of the general law, since esUblishe*!, tluit all bodica bacoOM r6d>bot at Um MUM tanpetmtura. 

 It is remarkable as indicating a considerable power of rvsearch when he was only 20 yean of vn.*^MaJor I.. ArrWn. K F. 



5301 : Litchfield (R. B.) To.m Wedgwood, the First Photo<}Raphkr : an \ i 



Life, his Discovery, and his Friendship with SAMUEL TAYLOR Coleriikjk, inrln 



Letters to the We<lg\voo<l8, an«l an Examination of Accounts of alleged Earlier i ii..i>'..ii y .. 

 Discoveries, with 4 portraits, 5 views, and fs. of handtcriting, 8vo. bnekram, t.e.g.^ .' • ' 



(p. 8«nett) , '" ' 



ConUinlng a reprint of Thomas WetlgwiKxl's i»a|ier In the Joiimal of the li.»yiil : i l«Cr.', ' An ' 



Methotl of copying Paintings uiwn Glasn, and of making IVofllcs, by the a,. ' »|«»o Ml'' 



InvenUil by T. Wedgwood, with Obserxations by H. Davy '—the flrat {troceM fo; , .^ ., piciurw b> 



light on a. 8e!:8itive surface. .... . , 



The book is also of far morn tlian scientific Interest, ami fUlI of aoggwUve pMM«o« on the UUrature aiMl i i 



5302 WEGMANN (Edward, c.K.) The Design and Construction of Dams, inclmling .MuM.nry. 

 Earth, Kock-Fill, Timl»er, and Steel Structures, also the nrinci|»al Tyi>e« «»f Movahlc Dum«, 5th 

 [latest] Ed , revised and enlarged, xcith 100 plates {many folding), 120 smaller illustratiotii, and 

 25 tables, 4to. cl., lis (sells £1. 1* nett) Aeic ) ork, lOOi 



One of the )«st wo»ki» on the subji-ct. 



6303 The Water-Supply of the City of New York. wUh 14« plates, plans, and maps (the 



many folding ones LINEN-MOUNTED), and 73 smaller aiustrations, 2 vol*. 4to. hf. gtren morwsro 

 mV^c/. *u/w, £L 5«(p. £2. 2*nettincl.) . .. . . .^ i^u/cm, 1890 



This valoable work is siwcially interesting for the historical iofortnaUno it oontaioa. which incladca a full account of 



the OM Croton Aqneduct. 



5304 WEIDLEB (Johann Friedrich ; F.R.S.) HiSTORiA AsTRONOMl.K, »ive de Urtu et ProgreMu 

 Astronomite, thick 4to. old calf gUt {fine copy), with bookplate of Philip 2nd harl Stanhope, 

 F R S. 10« 6</ Vxtemtterga;, 1 /4i 



' • Ony voit eclater beaucoup d'crudiUon, princinalenient sur les premiers rha|iitn« qui coocemeot les premLrea traces 

 (le rastronon.ie '.-.Vonfuc/a. 'C'est U seule hlstolre comphtc de I-aatroDOinle quon ait aue ju»|U a pr««nt, avantque 

 celle de Delainhrc eilt iMiru ; elle est remplie .Icnidition et de recherchea '.—Lalanilt. 



5305 WEILER (W.) WoRTERBUCH der Elektricitat und des MaoNKTISMUS: ein Hand- und 

 Naehschlagebuch ; with 816 illustrations, \toai 8vo. cl., Is (p. M. 13.50) Letpsig, 181W 



