224 HENRY SOTHERAN & CO., 140, STRAND, W.C, AND 37, PICCADILLY, W. 



4416 S[INCLAIR] (G[eorge, Prof. Philosophy/, Glasgow]) The Hydrostaticks : or the Weight, 

 Force, and Pressure of Fluid Bodies, made evident by Pliysical, and Sensible Experiments, with 

 some Miscellany Observations, the last whereof is a short History of Coal, and all the Common, 

 and Proper Accidents thereof ; a Subject never treated of before, with engraved title, 7 plates, and 

 woodcuts, sm. 4to. contemporary calf {VERY rare), £5. 56 Edinburgh, G. Sivintoun, etc., 1672 



4417 Another and fine fresh Copy in the original sheep, with author's inscr. ' Ffor my 



Lord Arniston' [Sir James Dundas, Lord Arniston, Lord of Session, oh. 1679], and the latter's 

 etched armorial bookplate, £6. 15s 



4418 Another Copy, wanting the engraved title and 2 plates ; contemporary calf {back 



damaged), £1. 5s 



' He appears to have been employed by coalowners iu the Lothians to report on the extent and dip of tlie various beds 

 of coal in the neighbourhood, and his report was published in 1072 in his ' Hydrostaticks', where he suggested the best 

 methods of draining off water from the coal seams. In this work he shows a knowledge cf English collieries as well as 

 Scottish.'— jD. N. B. 



The work is moreover of great interest for containing the author's investigations with the barometer (the first under- 

 taken in Scotland) to ineasure altitudes and the depth of mines ; also an account of a diving bell, which he used in 

 exploring the ship Florida, a relic of the Armada, wrecked on the Isle of Mull. Pp. 238-47 contain a relation of the case of 

 Gilbert Campbell of Glencure, Galloway, who was exorcised in 1654. The author was a strong believer in witchcraft, and 

 wrote a well-known work 'Satan's Invisible World discovered', iirst published in 1685. 



4419 SLUZE [Latine SLUSIUSJ (Rene FraiiQois de, Abbe d'A^nas ; F.R.S.) Mesolabium, seu Dure. 

 Mediae Proportionales inter Extremas Datas per Circulum et per Infinitas Hyperbolas, vel Ellipses 

 etperquamlibetexhibitte, ac Problematura omnium solidorum Effectio per easdem curvas ; accessit 

 pars altera de Analysi ; et Miscellanea ; with mimero2cs diagrams, sm. 4to. large sound copy in 

 white vellum, 15s Leodii Eburonum, 1668 



'II est I'auteur d'une methode par laquelle, une equation quelconque solide etant proposee, on pent la construire d'une 

 infinite de manieres differentes par le moyen d'un cercle et celle des sections coniques qu'on voudra'. 



The above edition contains the Analysis, not included in the first of 1659. ' De Sluze introduced the notation of fx and 

 fy for the derived functions of f (x, y) with regard respectively to x and y.'—W. W. R. Ball. 



4420 SMABT (John) Tables of Interest, Discount, Annuities, etc., 4to. old hf. morocco, uncut 

 (RARE), £1. 1726 



4421 Another Copy, old calf, newly and neatly rebacked, £\.\s 



'Best Edition of these celebrated tables.' — Prof. de. Morgan. They were reprinted verhatim by Francis Baily, f.r.s., 

 in his 'Doctrine of Interest and Annuities' [ q. v. ante], where he says : 'I am happy to observe, that after many years' 

 experience, I have not met therein with any errors but such as might be discovered on inspection.' 



'Their accuracy and excellence have been universally admitted.' — McCullocti. 



41^22 SMEA.TON (John, f.r.s. ; builder of the Eddystone Lighthouse) ACCOUNT of some Experiments 

 upon a Machine for Measuring the Way of a Ship at Sea, 4to. (pp. 16), sewn, is [s. I.,] 1754 



4423 Experimental Enquiry concerning the Natural Powers of Water and Wind to 



Turn Mills, and other Machines, depending on a Circular Motion, with 3 folding plates on 

 copper, 4to. (pp. 77), sewn [rare), lOs Qd 1760 



Original Edition of this important paper, for which he was awarded the Copley medal of the Royal Society, and which 

 ' is justly regarded as the most masterly report that has ever been published on the subject.'— .b'. Smiles. 



4424 : and an Experimental Examination of the Quantity and Proportion of 



Mechanic Power necessary to be employed in giving different Degrees of Velocity to Heavy 

 Bodies from a State of Rest ; also New Fundamental Experiments on the Collision of Bodies, 

 with 5 folding plates on copper, roy. 8vo. boards, uncut. Is Qd 1794 



4425 Second Edition, with 5 folding plates on copper, '96 : Experimental Enquiries con- 

 cerning the Principle of the Lateral Communication of Motion in Fluids ; applied to the 

 Explanation of various Hydraulic Phenomena, by J. B. Ventnri, trans, from the French [by 

 William Nicholson], 2 folding plates, '99—2 vols. roy. 8vo. in 1, boards, uncut, \2s 1796-9 



4426 Historical Report on Ramsgate Harbour, written by Order of the Trustees, first 



edition, with 2 folding plans, roy. 8vo. sewn {rare), \0s Qd 1791 



' In carrying out the elongated pier, Smeaton first employed the diving-bell in building the foundations, making use of 

 a square iron chest weighing about half a ton '.— S. Smiles. 



4427 Miscellaneous Papers, comprising his Communications to the Royal Society, forming a 



Fourth Volume of his Reports, with 12 copperplates, 4to. hf. russia {one joint cracked, and title 

 stamped), Is Qd 1811 



Containing his improvements of the air-pump, Savery's steam-engine, the mariner's compass, etc. etc. etc 



4428 Narrative of the Building, and Description of the Construction of the Edystone 



Lighthouse with Stone, with Appendix on the Lighthouse on the Spurn Point, built upon a 

 Sand ; 2nd Ed., corrected, with vignette on title, 20 copperplates of views, plans, and elevations, 

 and details of Smeaton' s building, and of the previous ones by Winstanley and Rudyerd, and 3 maps, 

 impl. folio, hf. cL, uncut {some II. stained) ; rare, £1. 10* ' 1793 



The best Edition, which wa& reprinted in 1813. The building of the Eddystone Lighthouse has made Smeaton's name a 

 household word among successive generations of Englishmen until to-day. It was built in 1756-9 of solid granite blocks, 

 and was the greatest work of its kind hitherto undertaken, and remained in use until 1870, when it was rebuilt as a monu- 

 ment on Plymouth Hoe, as the rock which formed the foundation had become greatly weakened by the sea. 



' Smeaton's story of the Eddystone Lighthouse is told in a very effective manner. It possesses an interest almost 

 dramatic, exhibiting a contest between a strong, skilled, and determined man, and the most tremendous forces of nature.' 

 — 5. Smiles. 



4429 Reports made on Various Occasions, in the Course of his Employment as a Civid 



Engineer [with Life] , with fine portrait by W. Bromley after W. Brown, 70 copperplates, and 

 niaps by W. Lowry, 3 vols. 4to. hf. morocco gilt {titles stamped, hut sound copy), lis 6d 1812 



4430 Another Copy, with Miscellaneous Papers (forming Vol. IV), with 84 copperplates 



and maps, 4 vols. 4to. hf. calf gilt, £1. 5.9 1812-14 



Published by the Society of Engineers, and containing all the author's important works, including his imorovement of 

 Savery's stean) -engine, accounts of his bridges at Perth, Banff, Coldstream, Hexham, and the North Bridge, Edinburgh, his- 

 canal and harbour works, etc. etc. 



