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



1171 [EMERSON (William)] Shori Comment on Sir I. Newton's Principia ; containing Notes 

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1172 Tracts : containing Mechanics, the Projection of the Sphere, and the Laws of Centripetal 



and Centrifugal Force; new Ed., with Life, by W. Bowe, \>r., plates, ^\o. old calf {joints cracked), 



45 1793 



The author began life as a poor boy, and walked all the way from Durham to London. ' He refused to become a member 



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1173 EMTAGE (W. T. A.) Introduction to the Mathematical Theory of Electricity and 

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1174 Light. 232 woodcuts, post 8vo. cl., Zs (p. 6s) 1896 



1175 ENCKE(Joliann Franz) Gesammelte mathematische undASTRONOMiscHE Abhandlungen, 

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1176 Die Entfernung der Sonne von der Erde, aus dem Venusdurchgange von 1761 herge- 



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The author's first published works, and important as giving the first approximately correct solar paralUx (8".571). The 

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1177 tJber den Ausnahmefall einer doppelten Bahnbestimmung aus denselben drei 



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1178" ENCYCLOPAEDIA BRITANNICA, 8th Ed.. Vol. I: the Dissertations, thick 4to. cl, 



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This volume, complete in itself, was not published in the following editions, and contains dissert«ations on the history 



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1179 METROPOLITAN A, or Universal Dictionary of Knowledge, on an Original 



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1180 : Encyclopaedia of Astronomy : comprising Plane Astronomy, by Peter 



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1181 Experimental Philosophy, by Peter Barlow, Francis Lunn, pr., P. M. 



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1182 Mechanical Philosophy : Mechanics, Hydrodynamics, Pneumatics, and Optics, 



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1183 Pure Mathematics, by Peter Barlow, Dean Peacock, Dionysius Lardner, 



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1184 Practical Engineering, and Allied Trades, ed. by Joseph G. Horner, Vols. I-IV 



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1185 ENFIELD (William) Institutes of Natural Philosophy, Theoretical and Experimental, 

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1186 ENGINEEJa (The), and Machinist's Assistant : Plans, Sections, and Elevations of Station- 

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1187 ENGINEERING-, an Illustrated Weekly Journal, edited by Zerah Coleurn, W. H. Maw, 

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1188 ENGLEFIELD (Sir Henry Charles, f.r.s.) On the Determination of the Orbits of 

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1189 ENGLISH (Douglas) Photography for Naturalists, zYZw^^ra^ec?, ro3\ 8vo. buckram, 2s 6d 1901 



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1191 ER-DMANN (Hugo) Lehrbuch der anorganischen Chemie ; with 4 coloured plates and 276 

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