HENRY SOTHERAN & CO., 140, STRAND, W.C., and 37, PICCADILLY, W. 59 



1148 EDINBURGH ROYAL SOCIETY'S Transactions, Vol. XXX, parts 2-4, XXXII-XXXVI, 

 XXX VII, pts. 1-2, and XXXIX, pts. 2-4, tHth numerous plates and other illustrations, 23 parts 

 4to. sacn, as issued, £3. 3* (p. £30. 12«) Edin., 1881-1900 



1149 EDSER (Edwin) Measurement and Weighing, 36 illustrations, post 8vo. cL, \s 6rf 1899 



1 150 EDWARDS (Joseph) Differential Calculus for Beginners, diagrams, post 8vo. cL, Is (>rf 

 [\).U{Jd) 1893 



1151 EDWARDS Jun. (Frederick) On the Ventilation of Dwelling- Houses, and the Utiliza- 

 tion of Waste Heat from Open Fire Places, ;>/a^e5 {some folding), roy. 8vo. cl. {scarce), Qs 1868 



Accoriliug to tlie preface the first attempt to use the heat escaninj; by the chimney. 



1152 EDWIN (R. A., R.N.) Traverse Table; with Simple and Brief Method of Correcting 

 CoMi'ASS Courses, roy. 8vo. cL, {cover slightly stained), 'Ss Portsmouth, 1871 



1153 EHRMANN (Friedrich Ludwig) Versuch einer Schmelzkunst niit Beyiiulfe der 

 Fkikkluft ; with copperplate, sm. 8vo. nice copy in original boards, with bookplate of Prof 

 F. L. Schurer {Strassburg,fl. 1789) ; scarce, \0s Qd Strassburg, 1786 



First Edition. It contains numerous interesting ami original experiments, t.«. describing an apparatus invented by 

 the autlior for using oxyliy«lrogen gas in his smelting operations. The work was considered important euough to bie 

 tniiislatcd by order of the French AoAdemy. 



1154 EssAi d'un ART de Fusion j\ TAide de I'AiR du Feu ou Air Vital, traduit par M. dk 



Fontallard; suivi dea MEMoiRESde Mr. Lavoisier sur le mCme Sujet ; u'ith 3 plates, 8vo. old 

 calf gilt, \0s Strasbourg, 1787 



i^voisier'rt contributions (pp. 113) compri.se : ' De ractlon du feu anime i)ar I'air vital sur les substances minerales les 

 plus ri'fractaires ', * Sur I'efltft (jue protluit sur les pierres precieuscs un degre de feu tres-violent ', and 'Sur uu moyen 

 (1 atiginchter cunsidi'rablement raction du feu et de la chaleur dans les operations chimiqucs '. 



1155 EIEFE (John Bweetman) Account of Improvements in Chronometers, with Robert 

 MoLVNEUX's Specifications for the same [with Preface by Sir J. B. Airy], Opiates by Basire, 

 4to. cl.,Qs ' 1842 



The improvements, for which the author received a reward from the Admiralty, have reference to the comi>ensatioa 

 balance. 



1156 EISENSCHMIDT (Johann Caapar) Diatribe de Figura Telluris elliptico-sph^roide, 

 ul)i nna e.\liil»etur eiu.s ma;,aiitudo per 8ingula.s dimensiones, consensu omnium OWrvationum 

 comprohata, editio princeps; with 3 copperplates, sm. 4to. sewn, uncut (rare), £1. Is 



Argentorati, 1691 



This work, through the author's contention of the earth being elongated towards the poles, caused tiie long discussion 



on tlio fi;;ure of the earth which was only ended in 1730, by the result of Maupertuis and Bouguer's meridian-measurement. 



1157 EISSLER (M.) Handbook of Modern Explosives, 105 illustrations, cr. Svo. cl., 4« 

 (p. 10.v6r/) 1890 



1 1 3S ELECTRIC ILLUMINATION, by James Dredge (Editor), Conrad Cooke, M. F. O'Reilly, 



S. i*. Tiio.MPsoN, F.R.S., and H. ViVAREZ, with Abstracts of [Patent] Specifications relating 

 to Electric Ligliting (1837-72), compiled by W. Lloyd Wise, Vol. I (all pub.), ivith 833 woodcuts, 

 thick 4to. cl., lOs (p. £1. 10*) [1882J 



still valuable for the list of iKitents taken out. The propo.sed 2nd vol., containing the applications of the electric light, 

 cost of prrMhiction, photometry, secondary batteries, accessories, motive power, etc., was never published. 



1159 ELECTRICAL ENGINEER (The); a Weekly Journal ot Electrical Engineering, with 

 which is incorporated ' Electric Light', Vols. IX-XV (New Series, Vols. lll-lX), with plates a7id 

 numerous other illustrations, 7 vols, folio, hj. calf {last v. sewn), £1. 5s 1889-92 



IIGO REVIEW (The); originally the Telegraphic Journal and Electrical Review, 



from 1882 to 1893 (Vols. 10-33), illustrated, 24 vols, folio, the first 20 vv. hf. calf gilt, and the rest 

 sewn, £8. Ss 1882-93 



llGl ELECTRICIAN (The), and Electrical Engineer: a Monthly Review of Theoretical and 

 Applied Science, Vols. III-XIV, copiously illustrated, 12 vols. 4to. hf. calf {last 2 vols, sewn), 

 I'l. lOv New York, 1884-92 



1102 ELECTRICIEN (LM: Revue G6n6rale d'l^LECTRlciT^ : Secretaire de la Riklaction E. 

 Ho.sPiTALiKU, Tomes 1 a 6 ; with plates, and numerous woodcuts, 6 vols. roy. Svo. in 6, hf. calf gilt , 

 \os 1881-3 



1163 6LE0TRICIENS, CoNGRi-is International des, Paris, 1889 ; Comptes Rendus des Travaux, 

 piil.li.-^ jKU !(•> suins (le .1. Joihkkt ; with woodcuts, roy. Svo. hf calf, 4* 1890 



not ELECXROCHEMICAL SOCIETY (American), Transactions of the; Vols. l-W , tvith por- 

 traits, plates, and numerous other illustrations, 6 vols. Svo. cl., £1. IS* (p. £3. 15* nett) 



Philadelphia, 1902-4 



1165 ELLIOT (Jamea) Complete Practical Treatise on the Nature and Use of Logarithms, 

 and on Plane Trigonometry, 5th Ed., with Key, 3rd Ed., 2 vols. Svo. cl., 4* [1872-55] 



1166 ELLIS (Alexander John, f.r.s. ; philologist) Algebra identified with Geometry, j^late, 

 8vo. sewn {scarce), 5s 1874 



Maintaining that algebra is a purely geometrical calculus, not an arithmetical one. 



1167 How to teach Proportion without Reference to Commensurability, with Notes on 



Collateral Subjects, Svo. sewn, 2s 1877 



1 168 ELLIS (Robert Leslie; Baconian) Mathematical and other Writings ; edited by William 

 Walton, with Memoir by Harvey Goodwin [Bishop of Carlisle], steel portrait by Badclyje, and 

 diagrams, Svo. cl.. Is 6f/ (p. 16*) 1863 



1169 [EMERSON (WiUiam)] The Arithmetic of Infinites, and the Diflferential Method; illus- 

 trated by E.xamples, numerous plates, Svo. old calf, 5* 1767 



1170 The Method of Increments, wherein the Principles are demonstrated; and the Practice 



thereof shewn in the Solution of Problems, 4to. sewn {rare), 10* Qd 1763 



Chiefly based on Taylor's • Methodus Increuientorum ', and Stirling » ' Differential Method ', and valuable as an early 

 eatise on the calculus of finite differences. 



