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902 CROOKES (Sir William, f.r.s.) On Attraction and Repulsion resultino- from Radiation 

 (from PliiL Trans. Roy. Soc), ivith plates and icoodcuts, complete in G parts in 1 vol. roy. 4to. 

 cL (SCARCE), £1. Is '1873-8 



The Jirst account of the author's iuvtulioii of the Radioiiiotcr, and establishing his th.-oiy of nuliant iii:itlcr. 



903 , Parts 2-4, and 6 ; with the following' Papers: on Thallium [di.srnrrml h,/ thr author'], 



'63: Researches on the Atomic Weight of Thallium, 4 plate.s, "ri ■ On iho Illumina- 

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 and icoodcuts, '83: On the SUPPOSED 'New FORCE ' of J. Th01!E, woodcuts, '87 -in 1 vol. 4to. 

 buckram, £1. o.v 1863-87 



904 Practical Handbook of Dyei.N(; ami Calico-Printing. //•//// W plates, VI specimens of 



dyed and printed fiih,ir<, and 38 ivoodcuts, tJjick 8vo. cl. {out of print), los ([>. £2. 2*) 1874 



One of the best text-books on the snbject. 



90o Select Meihuis in Chemical Analysis (chielly Inortranic). third [last] Ed., rewritten 



and enlar<,'e«l, woodcuts, thick 8vo. cL, lis (p. £L 1^ nett) 1894 



906 , and Ernst R6HRIG : Practical Treatise on Mktam.urgy, adapted from the last 



German Edition of Pkok. Ki;i;i."s .Mki Al.L^l;l■^ . fi'fh &2o icoodcuts, 3 thick vols. 8vo. cL, uncut 

 {scarce), £2. 2*- (p. £-1. 1!»>) 1868-70 



• '7 Vol. II om.v: Copper and Iron, icith'r.'iwoodmf.^. thick Sxo. rj.. i.-.m]. I'l. iOa) 1869 



: V. MlTCHKLL. aii<l WagNER, post. 



•»us CROSS (C. F.) The iNuu.sTRiAL Uses of Cellulose (Canic.r LccLurcs), my. Svo. man, \s 1897 

 909 CROSSLEY (Edward), Joseph GLEDHILL, and James Maurice WILSON, Canon of 



Worcester, FF.R.A.S.: HANDBOOK of DOUBLE STARS, with CATALOGUE of 1200 DOUBLE StARS and 



exten.sive Lists of Measures, and additional Notes brinjjing the Measures up to 1879, for the Use 

 of Aniateui-s, with plates and diugrams, 8vo. cL, t. e. g. {scarce), Ms Qd 1879 



The only handbook on tho subject. * there docs not exist any work which gives information sulliciLMitly (Tctailcl to be 

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 wishes to get an accurate and complete list of the previous measures of any particular double star.'— /'n/atc. 



^10 CROUSAZ (Jean Pierre de) Commentaire sur TAnalyse des Infiniments Petits ; with 

 4 plates, 4to. fine copy in old calf gilt, with bookplate of Phil i}) 2nd Earl Stanhope, F. U.S., 5* 1721 



\\\ Reflexions sur I'Utilite des Mathematiques, et sur la Maniere de les etudier; front. 



l^mo. old calf, with Lord Stanhope's bookplate, ^s Amsterdam, M 15 



\\2 Traite de I'Algebre ; with j^lates, sni. 8vo. nice copy in old calf, with Lord Stanhope's 



bookplate, 35 Gd 1726 



GUMMING (Alex., f.r.s.) The Elements of Clock and Watch- Work, adapted to Practice, 

 with 16 large copperplates, 4to. hf bound, lOs (5d 1766 



One of the best old treatises on the subject. 



Observations on the Effects which Carriage Wheels, with Rims of different Shapes, 



Imve on the Roads, with plate, 4to. sewn, with long author's inscr. to Charles '^rd Earl Stanhope, 

 FJi.S., .-)v . 1799 



Advocating the use of cylindrical wheel rims, instead of ' tapering rims now universally used '. 



GUMMING (James, f.r.s.) Manual of Electro Dynamics, chiefly translated from the 

 ' Manuel d'Electricite dynami(iue' of J. F. Demonferrand, with Notes and Additions, compre- 

 hendint^ the latest Discoveries and Improvements, ivith 7 folding plates, 8vo. boards, uncut, 

 lOsGd Cambridge, 1827 



'He constructerl most delicate telescopes, and made important modifications and simplifications of eh'ctricarinethods. 

 He was the first to show, that when the temperature of one junction of certain thermo-electric circuits was madnally 

 raised, the curreut gradually rose to a maximum, then fell off, and finally was reversed at a red heat '— '/. 7'. Ikthmij. 



GUMMING (Linnaeus) Introduction to the Theory of Electricity, with numeious Exam- 

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)\1 Second Edition, with Corrections and Additions, diagrams, post 8vo. cl., As (p. 8* Qd) 1879 



H8 Third Edition, with Corrections and Additions, diagrams, post 8vo. cl. {cover stained), is 



(p. 8« 6^) 1885 



919 CURIOSITIES in Chymistry : beino; New Experiments and Observations concernini; the 

 Principles of Natural IJodies, written by a Person of Honour, and published l)y his 

 Operator, H. G., V2\\n\ fine copy in hf morocco neat {rare), 15.s ' 1091 



By way of variety from the then prevailinjj i)hloj?istic theory, the anonymous author ori-inatcs a still innre peculiar theory 

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 pretended Hypostatical Principles are ultimate and reducible into mere Elementary Water'. 



920 GURLE (J. H.) The Gold Mines of the World, numerous plates and plans, 4to. cl, Ss 6d 

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a valuable work which should be read by every investor before risking his neck in the Kaffir Circus. 



021 GUTHBERTSON (Francis) Euclidian Geometry, with numerous illustrations, post 8vo. cl., 

 2.9 Qd 1874 



922 GUVIER (Leopold Ghristian Frederic Dagobsrt [postea Georges] Baron) Essay on the 

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923 Rapport Historiquesuf les Prog Ri<:s des Sciences Natukelles <lepuis 1789, et sur 



leur Etat naturel, nouvelle Ed., 8vo. sewn, 3* 1828 



924 Another Copy, hf. cl., vith Prof Williamson's auto., 3* Qd 1827 



