HENRY SOTHERAN & CO., 140, STRAND, W.C., AND 43, PICCADILLY, W. 407 



7969 FLEMING (John Ambrose, F.R.S.) On the MEASUREMENT of SMALL CAPACITIES and IN- 

 DUCTANCES, with plate, 8vo. (pp. 19), sewn, Is Qd 1903 



7970 SHORT LECTURES to ELECTRICAL ARTISANS ; with 74 woodcuts, cr. 8vo. cl., with book- 

 stamp o/E. Hospitalier, 2s 1886 



7971 WAVES and RIPPLES in WATER, AIR, and AETHER, with front, and 85 illustrations, 



post 8vo. cl., 2s Qd (p. 5s) 1902 



7972 , and Sir James DEWAR, F.R.S. : On the MAGNETIC SUSCEPTIBILITY of LIQUID 



OXYGEN, 8vo. (pp. 19), sewn, Is Qd 1898 



7973 FURTHER OBSERVATIONS on the DIELECTRIC CONSTANTS of FROZEN ELECTROLYTES at 



and above the Temperature of Liquid Air, 8vo. (pp. 16), sewn, Is Qd 1897 



7974 FLETCHER (Banister, F.R.I. B.A.) The LONDON BUILDING ACTS, 1894, 2nd Edition, enlarged, 

 with 19 plates and numerous diagrams, cr. 8vo. cl., '2s Qd (p. 6s Qd) 1893 



7975 QUANTITIES : a Text-Book for Surveyors in Tabulated Form, with Table of the Various 



Trades, Tables of Constants, etc. etc., 6th Edition, thoroughly revised, with 16 plates and 

 numerous woodcuts, thick cr. 8vo. cl., 3s Qd (p. 7s Qd) 1895 



7976 FLETCHER (Lazarus , F.R.S., Director Natural History Museum) The OPTICAL INDICATRIX, 

 and the Transmission of Light in Crystals, with 19 diagrams, large 8vo. cl. (o. p.), 5s 1892 



7977 FLETCHER (Thomas) The COMMERCIAL USES of COAL GAS, illustrated, 12mo. cl. cover, 

 Is Qd [1898] 



7978 FLETCHER (William, M.I.MECH.E.) ENGLISH and AMERICAN STEAM CARRIAGES and 

 TRACTION ENGINES, with 251 plates and other illustrations, 8vo. cl., Is Qd (p. 15s nett) 1904 



The first 91 pp. contain an interesting historical sketch. See also NORRIS, post. 



7979 The HISTORY and DEVELOPMENT of STEAM LOCOMOTION on COMMON ROADS, with 108 



illustrations (including many folding plates), 8vo. cl. (o. p.), 5s 1891 



Mainly historical. 



7980 FLINT (William; D.D.) and J. D. F. GILCHRIST: SCIENCE in SOUTH AFRICA: a Hand- 

 book and a Review, prepared under the Auspices of the S. African Governments, and the S. African 

 Association for the Advancement of Science, with plates, maps, and numerous other illustrations, 

 roy. 8vo. cl., 8s Qd Cape Town, 1905 



Containing contributions by Sir David Gill, F.R.S. (Astronomy and Geodesy in S. Africa), J. C. Beattie, F.R.S.E., the 

 Editor, and others. 



7981 FLOdUET (Gaston) Sur la THEORIE des EQUATIONS DIFFERENTIELLES LINEAIRES (These), 

 4to. sewn, with auto, of Prof . Lloyd Tanner, F.E.S., 3s Qd 1879 



7982 FLORI (Lodovico, s.j.) TRATTATO del MODO di TENERE il LIBRO DOPPIO DOMESTICO, col suo 

 Esemplare, folio, contemporary Italian vellum (RARE), 1. 5s Roma, 1677 



' E una delle migliori opere di ragioneria in ordine alia tenuta dei libri della scrittura doppia.' Riccardi. 



7983 FLORIANI (Pietro Paolo, da Macerata) DIFFESA et OFFESA delle PIAZZE, prima edizione ; 

 with engraved title, portrait, and 51 plates, folio, hf. vellum (a few II. browned and wormed in 

 blank margin) ; RARE, 1. 12s Qd Macerata, 1630 



' Bella e rara edizione.' Riccardi. 



7984 FLORYN (Jacob) BESCHOUWING van eene MERKWAARDIGE algemeene EIGENSCHAP des 

 CIRKELS; with folding plate ; Over de BEWEGING van een WIEL, op een' effen Grond, gelijkmatig 

 voortloopende ; with plate, 2 parts in 1 vol. 4to. boards, 3s Qd z. p. [c. 1814] 



7985 FOCK (Andreas, Univ. Berlin) INTRODUCTION to CHEMICAL CRYSTALLOGRAPHY, translated 

 and edited by W. J. POPE, with Preface by N. STORY-MASKELYNE, F.R.S., post 8vo. cl., 5s 



Clarenaon Press, Oxford, 1895 



7986 FODEN (James) The BOILERMAKERS' and IRON SHIPBUILDERS' COMPANION: a Series of 

 original and carefully calculated Tables, 5th [last] Edition, with diagrams, post 8vo. cl., 3s 

 (p. 5s) 1900 



7987 FOERSTER (Max, Dresden) Das MATERIAL und die STATISCHE BERECHNUNG der EISEN- 

 BETONBAUTEN, unter besonderer Beriicksichtigung der Anwendung im Bauingenieurwesen ; with 

 93 illustrations, impl. 8vo. sewn, 4s (p. M. 6) Leipzig, 1907 



7988 FOERSTER ( Wilhelm, Univ. Berlin) STUDIEN zur ASTROMETRIE : Gesammelte Abhandlungen ; 

 with diagrams, 8vo. cl., 5s (p. M. 7 unbound) Berlin, 1888 



7989 FOGLIANI (Guiglio) MAPPARUM CONSTRUCTIO in PLANIS SPH^RAM tangentibus, 4to. 

 (pp. 10), sewn (last I. defective), 2s Qd Romae, 1718 



7990 FOLWELL (Amory Prescott) SEWERAGE : the Designing, Construction, and Maintenance of 

 Sewerage Systems, with numerous woodcuts (some full-page), large 8vo. cl., Qs Qd (p. 12s Qd nett) 



New York, 1898 



7991 WATER-SUPPLY ENGINEERING': the Designing, Construction, and Maintenance of Water- 

 Supply Systems, both City and Irrigation ; 2nd Edition, enlarged, with 19 plates and 95 woodcuts, 

 8vo. cl., 10s Qd (p. 17 nett) ibidem, 1901 



7992 FONTAINE (Alexis, de V Academic) TRAITE de CALCUL DIFFERENTIEL et INTEGRAL ; with 8 

 folding plates, 4to. hf. vellum (rare), 15s Imprimerie Royale, 1770 



This work, which appears to be a reprint (? with additions) of the author's ' Memoires donnes a 1* Academic, et non 

 imprimes dans leur temps ', published in 1764, was unknown to the Biographie Generale, Querard, Poggendorff, and other 

 bibliographers. It contains his well-known ' Solution du Probleme des Courbes Tautochroncs '. 



7993 FONTAINE (Hippolyte) ELECTROLYSE : Renseignements pratiques ; with 34 woodcuts, roy. 

 8vo. sewn, 3s Qd 1885 



7994 ELECTRIC LIGHTING : a Practical Treatise, translated by PAGET HIGGS, with 48 woodcuts, 



8vo. hf. calf, 2s Qd 1873 



Of historical interest. 



