386 HENRY SOTHERAN & CO., 140, STRAND, W.C, AND 43, PICCADILLY, W. 



7568 ENCYCLOPiEDLA. of PURE MATHEMATICS, by Peter Barlow, Dean Peacock, 

 DioNYSius Lardner, pr., Sir G. B. Airy, H. P. Hamilton, pr., A. Levy, T. G. Hall, pr., 

 Augustus de Morgan, and Henry Moseley, Canon of Bristol, with 17 plates, thick 4to., 

 hf. calf {rubbed), with bookplate of Prof . H. W. Lloyd Tanner, F.B.S., 12s Qd 1848 



Including Geometry, Arithmetic, Algebra, Geometrical Analysis, the Theory of Numbers, Trigonometry, Analytical 

 Geometry, Conic Sections, Dififerential and Integral Calculus, Calculus of Variations, of Finite Differences, and of Functions, 

 the Theory of Probabilities, and Definite Integrals. 



7569 ENGYKLOPADIE der mathematischen Wissenschaften, mit Einschluss ihrer Anwend- 

 ungen, herausgegeben im Auftrage der Akademieen der Wissenschaften zu Gottingen, Leipzig, 

 Miinchen, und Wien, sowie unter Mitwirkung zahlreicher Fachgenossen ; with numerous woodcuts 

 and diagrams', complete to 1909 (as under), in 1 thick vol. roy. 8vo. buckram, and numerous 

 parts, sewn as issued, £7. 105 (p. M. 216.80) Leipzig, 1898-1909 



INHALT :— I. Band : Arithmetik und Algebra, 2 v. II. Band : Analysis, I. Teil, Heft 1-6, II. Teil, Heft 1, III. Teil, Heft 



I, III. Band : Geometrik, I. Teil, Heft 1-3, II. Teil, Heft 1-4, III. Teil, Heft 1-3. IV. Band : Mkchanik, I. Teil, I. Abt., 

 1 v., L Teil, II. Abt., Heft 1., II. Teil, I. Abt., 1 v., IL Teil, II. Abt. Heft 1-2. V. Band : Physik, L Teil, Heft 1-4, II. 

 Teil, Heft 1-2, III. Teil, Heft 1. VI. Band : Geodaesie, Gkophysik und Astronomie, I. Teil, Heft 1-2, 1. Teil, B, Heft I. 



II. Teil, Heft 1-2. 



7570 ENFIELD (WilUaxn) Elements of Natural and Experimental Philosophy, with numerous 

 plates, 2 vols. 32mo. old calf morocco, 4* %d 1809 



ENGELHABD (Nicolas, Univ. Groningen)—v. Musschenbroek, post. 



7571 ENGINEER (The), complete from the beginning in 1856 to 1893 (Vols. 1-75), with 

 very numerous fine plates and woodcuts, 75 vols. roy. folio in 60, vv. 1-70 in 55 hf. calf, 

 and 71-5 hf. roan, £15. 1856-93 



Very scarce complete, the earlier portions being very difficult to find. 



7572 Another Series, from 1865 to 1891 (Vols. 19-72, but wanting vv. 21-2, 27-8, 31, and 66), 



48 vols. roy. folio, hf. calf and hf. roan, £4. 4* 1865-91 



This is the oldest English engineering journal, as distinct from Societies' Proceedings, and is indispensable to every 

 professional library. 



7573 ENGINEERING-: an Illustrated Weekly Journal, edited by Zerah Colburn, 

 William Henry Maw, and James Dredge, from the beginning in Jan. 1866 to 1897 

 (Vols. 1-63), with very numerous plates, and many hundreds of woodcuts {many of 

 large size), 61 vols. roy. 4to. cl. {vv. 57 and 61 wanting), £18. 18s 1866-97 



This paper, which immediately it was started obtained the foremost place among professional papers, gives the fullest 

 information on the theory, and the best illustration of the practice, of Engineering at home and abroad. Articles by all 

 the foremost engineers on the Iron and Steel Manufactures, Railways, Agricultural Machinery, Materials of Construction, 

 Iron and Steel Shipbuilding, Gas, Water, and Sewage-works, Telegraphs, Electric Lighting, and all the developments ol 

 Electric Power Transmission, etc. etc. etc., are treated at length. The early volumes are now very scarce, and it is 

 also difficult to make up many of the later ones, as most of the numbers are out of print. 



7574 : Double Number : The New Cunarders ; the Chicago Exhibition, copiously 



illustrated with plates and other illustrations, folio, cl. {o.p.), 35 6c? 1893 



7575 CONGBESS (International), Glasgow, 1901 : Report of the Proceedings and Ab- 

 stracts of the Papers read, with Preface by Robert Cairo, edited by J. D. Cormack, 8vo. cl., 

 Zs 6d Glasgow, 1902 



7576 EDUCATION in the British Dominions, compiled from Official Sources, 8vo. cl., 2s 6c? 



Institution of Civil Engineers, 1891 



7577 REVIEW (The) : a Monthly Journal for Civil, Mechanical, and Electrical Engineers, ed. 



by H. C. E. Andr^e and Edward Walker, Vol. I, copiously illustrated, 4to., cl., 3s Qd 1891-2 



7578 ENGINEERS (ROYAL), Professional Papers of the Corps of, from 1864 to 1904 (New 

 Series, v. XIII— XXIII, and Third Series, v. I- XXX), with Index to 1837-92, with very num- 

 erous folding plates and maps, 42 vols. roy. 8vo. and 8vo. cl., £3. 10s Woolwich, 1864 — Chatham, 1904 



7579 Another Set, from 1895 to 1902 (as under), with very numerous folding plates and maps, 



9 vols, thick 8vo. cl., and 21 parts, sewn, £1. Is Chatham, 1895-1902 



Contents :— Royal Engineers' Institute : Occasional Papers, vols. XXI— XXVIII (1895-1902), with Index, 9 thick 

 v., d. : Confidential Series, Papers 1-14 (No. 11 missing), 13 parts, sewn, '91-1903 : Foreign Translation Series, 

 Papers 1-8, 8 parts, sewn, '95-1904. 



7580 ENGL E HEA R T (N. B.) Concise Treatise on Eccentric Turning, with Practical Observa- 

 tions on the Uses of the Eccentric Cutting Frame, the Drilling Frame, and the Universal Cutting 

 Frame, with numerous plates containing 50 patterns, 4to. cl., Is 6d (p. 15s) 1867 



7581 ENGLER (Carl ; Karlsruhe) und J. WEISSBERG : Kritische Studien uber die Vorgange 

 der AUTOXYDATION, large 8vo. sewn, 4s (p. M. 6) Braunschweig, 1904 



7582 ENGLISH MECHANIC (The), and World of Science : a Record of Engineering, 

 Building, Astronomy, Chemistry, Photography, Biology, Microscopy, etc. etc., complete 

 from the beginning in 1865 to Nov., 1899 (Vols. I— LXX), and from April 24, 1903 

 to Feb. 2, 1906 (wanting parts 1712, 1750, and 1770), with very numerous woodcuts, 

 60 vols, folio, flL, and the rest in parts, sewn as issued, £9. 1865-1906 



7583 A Series from March, 1866 to August, 1896 (Vols. 3-63), 61 vols, folio, 



23 vv. in 18, hf. roan, and the rest in cl. and sewn, £6. 1866-1896 



7584 ENGSTR5M (Folke August; Univ. Lund) Bestamning af Banan for Komet 1847. II., 

 4to. (pp. 21), sewn. Is 6d Lund, 1881 



7585 ENNIS (Jacob) The Origin of the Stars, and the Causes of their Motions and their Light, 

 first London Edition [with Address (pp. 31)], diagrams, post 8vo. cl. {scarce), 5s 6d 1876 



Containin£f, according to the author's ' address ', ' several new discoveries which rank among the most conspicuous 

 ever made in astronomy '. . 



