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



7473 EDISON (Thomas Alva), The Life and Inventions of, by W. K. L. and Antonia Dickson, 

 icith 200 illustrations {including many plates), large impl. 8vo. cl., t. e. g., 8s 6d 1894 



7474 EITFE (John Sweetman) Account of Improvements in Chronometers, with Robert 

 MOLYNEUX's Specifications for the same [with Preface by Sir G. B. Airy], 5 plates by Basire, 

 4to. (pp. 25), seum {scarce), Ss Qd 1842 



The improvements, for which the author received a reward from the Admiralty, have reference to the compensation 



7475 EEFFEL (Oustave ; constructor of the Eij^el Tower) Travaux Scientifiques executes k la 

 Tour de Trois Cents Metres, 1889-1900 ; with etched portrait^ 2 plates, 86 illustrations, and folding 

 map, 4to. sewn, 10s 6d 19()0 



Pp. 39-194 contain Meteorology and Physical Phenomena. 



7476 EINHOF (Heinrich) Grundriss der Chemie f iir Landwirthe, aus hinterlassenen Dictaten 

 herausgegeben von Albrecht Thaer, I. Theil, 8vo. hf calf {scarce), 6s Qd Berlin, 1808 



7477 EISEJNjatJ'TTENWESEN, Jahrbuch fiir das: Erganzung zu ' Stahl und Eisen ', bearbeitet 

 von Otto Vogel, Jahrgang I— IV ; illustrated, 4 vols. roy. 8vo. cL, £1. 5* (p. M. 40) 



Diisseldorf, 1902-6 



7478 Jahrgang II ; illustrated, roy. 8vo. cl., 5s (p. M. 10) ib., 1903 



7479 EISENSTEIN (Ferdinand Gotthold Max, Univ. Berlin) Mathematische Abhandlungen 

 besonders aus dem Gebiete der Hohern Arithmetik und der Elliptischen Functionen, mit 

 Vorrede von C. F. Gauss ; with plate, 4to. hf. roan neat, with bookplate of Prof. H. W. Lloyd 

 Tanner, F.B.S., 6s Berlin, 1847 



Containing the author's most important memoirs, including his ' Neue Theoreme der hoheren Arithmetik ', which 

 ' defined the ordinal and generic characters of ternary quadratic forms of an uneven determinant ; and in the case of 

 definite forms, assigned the weight of any order or genus'.— FT. W. R. Ball. 



7480 EISSLEB (Manuel, Mining Engineer) Metallurgy of Gold : a Practical Treatise on the 

 Metallurgical Treatment of Gold-Bearing Ores, including Concentration and Chlorination, and 

 Assaying, Melting, and Refining, 2nd Ed., enlarged, mth 132 woodcuts, cr. 8vo. cl., Ss (p. 7^ 6d) 



1889 



7481 Fourth Edition, enlarged, with 26 folding plates, and 171 other illustrations, thick 8vo. 



cl, 7s (p. 16*) 1896 



7482 Another Copy, cl. {cover soiled), 6s 6d 



The standard work on the metallurgy of gold. 



7483 The Modern High Explosives : Nitro-Glycerine and Dynamite : their Manufacture, Use 



and Application ; Pvroxyline, or Gun-Cotton ; the Fulminates, Picrates, and Chlorates ; also their 

 Chemistry and Analysis, with 129 illustrations, large 8vo. cl., 8s (p. 17s nett) New York, 1884 



7484 EKIN (Tom Charles, m.i.c.e.) Water Pipe and Sewer Discharge Diagrams, imth 4 large 

 folding diagrams, folio, cl., 6s (p. 12* 6d nett) 1908 



7485 ELECTRIC and GAS EXHIBITION (International) at the Crystal Palace, 1882-3 : 

 Report of the Gas Section, edited by W. H. Bennett, with woodcuts and 44 folding tables, 

 2 vols. 8vo. cZ., 5s 1884 



7486 ELECTRICAL ENGINEER (The): a Weekly Journal of Electrical Engineering, with 

 which is incorporated 'Electric Light', from 1896 to 1905 (New Series, v. 18-35), with portrait, 

 plates, and numerous woodcuts, 18 vols, folio, cl., £3. 3s 1896-1905 



7487 INSTITUTE (The) : Correspondence Instruction, copiously illustrated, 



complete in 7 vols. 8vo. hf. leather, £1. 10s (p. £4. 4s nett) 1903-4 



A complete set to 1910: 



7488 ENGINEERS (INSTITUTION of; originally SOCIETY of TELEGRAPH 



ENGINEERS), JOURNAL of the, including Original Papers, Communications, and 

 Discussions on Telegraphy and Electrical Science, edited by Sir Francis John 

 Bolton, H. Schutz Wilson, William Edward Ayrton, f.r.s., etc. etc., complete from 

 the beginning in 1872 to Aug., 1910, with Indexes to vv. ISO, plates, and numerous 

 woodcuts, 33 vols. 8vo. hf. calf 5 vols. cZ., and the rest in parts, sewn (scarce), 

 £19. 19s 1872-1910 



_ Containing many valuable contributions by Lord Kelvin. The above set having issued from the Royal Engineers* 

 Library, a number of volumes bear their stamp on title. 



7489 Another Set, from 1884 to 1909 (Vols. 13-43). with Indexes to vv. 11-30, 



and Library CATALoauE, 14 vols. 8vo. hf. calf gilt, and the rest in parts, sewn, £12. 



1884-1909 



7490 Another Set, from March 1897 to 1907 (Vols. 26-39), 14 vols. 8vo. sewn as 



issued, £2. 10* 1897-1907 



7491 Vols. I to IV only, hf calf (very scarce), £2. 2s 1872-5 



7492 MAGAZINE (The), conducted by Charles Vincent Walker, f.r.s., complete from 



its beginning in July, 1843 to its conclusion in Oct., 1846, with plate and woodcuts, 2 vols. 8vo. cl. 

 (SCARCE), unth auto, of, and MS. Index by, F. J. Jervis-Smith, pr., F.B.S., £1. 5s 1843-6 



Containing original contributions by Lord Armstrong, Alexander Bain, J. P. Gassiot, Sir W. R. Grove, Sir W. S. 

 Harris, fk.r.s., the Editor, etc., besides abstracts and translations of all the important papers on electrical science in 

 Bnglish and foreign scientific journals. 



7493 NEWS (The), and Telegraphic Reporter, edited by Sir William Crookes, f.r.s., 



Vol. I, unth illustrations, 4to. hf. calf gilt (scarce), 155 1875 



Apparently the only volume published. It contains original contributions by the Editor, J. A. Fleming, Dr. J. H. 

 Gladstone, FF.B.s., T. duMoncel, etc. 



