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



8929 HARRIS (G. Montagu), and Henry Titus WAKELAM, M.I.C.E. : The FIRST INTER- 

 NATIONAL ROAD CONGRESS, Paris, 1908, illustrated, roy. 8vo. cl., 2s [1909] 



8930 HARRIS (George F., F.G.S.) GRANITES and our GRANITE INDUSTRIES, with 15 woodcuts, 

 cr. 8vo. cl, 2s 1888 



8931 HARRIS (John, D.D., F.R.S.) LEXICON TECHNICUM: or UNIVERSAL ENGLISH DICTIONARY of 

 ARTS and SCIENCES, explaining not only the Terms of Art, but the Arts themselves, first 

 edition, with portrait by G. White, fine copperplates (some folding), and numerous woodcuts, 

 thick folio, old panelled calf (joints mended), 1. 1* 1704 



The rare first edition of the first technical dictionary in any language. It is specially interesting for an early account of 

 Savery's ' fire [sc. steam] engine ', with a folding plate illustrating it, reproduced on an enlarged scale from ' The Miner's 

 Friend ' (1702). 



8932 NEW EDITION [greatly enlarged ; with Table of Artificial Sines, Tangents, and Secants, 



to every Degree and Minute of the Quadrant], Vol. I 4th Ed., and Vol. I 2nd Ed., with portrait 

 by R. White, copperplates, and numerous woodcuts and diagrams, 2 vols. folio, old calf, joints 

 cracked, with old bookplate 'A. Crocker, schoolmaster, Ilminster', 15s 1725-3 



8933 HARRIS (John, Kuklos') SOME PROPOSITIONS in GEOMETRY, with 15 plates, and numerous 

 diagrams, 4to. cl., Is 6d privately printed, 1884 



Containing this Canadian paradoxer's problems in circle-squaring, trisectiori of the angle, etc. on a system ' strictly 

 based upon fact.' An appendix at end, printed in 1879, is entitled 'Geometrical Demonstration of the Ratio of the 

 Circle's Circumference to the Diameter '. Besides these mathematical delectations he set Macaulay right on the Relations 

 of Theology to Government, and tackled Kant's Critique of Pure Reason. 



8934 HARRIS (Joseph ; Assay Master, Royal Mint) DESCRIPTION and USE of the GLOBES and 

 the ORRERY, with brief Account of the Solar System ; 2nd Edition, with folding plates, 8vo. 

 old calf (joints cracked), 6s 1732 



8935 FIFTH EDITION, with folding plates, 8vo. old panelled calf, 5s 1740 



8936 TENTH EDITION, with folding plates, 8vo. old sheep, 4s 1768 



' On his monument in Talgarth Church it is said, that he invented many mathematical instruments.' D. N. B. 



8937 HARRIS (Vincent Dormer, M.D.), and d'Arcy POWER, F.R.C.S. : MANUAL for the 

 PHYSIOLOGICAL LABORATORY, 5th [last] Edition, with 120 illustrations, cr. 8vo. cl. (o. p.), 4s 

 (p. 7* Qd) 1892 



8938 HARRIS (William A.) TECHNOLOGICAL DICTIONARY of INSURANCE CHEMISTRY, cr. 8vo. 

 cl., with inscr. to Dr. J. W. Russell, F.R.S., 4s Liverpool, 1890 



8939 HARRIS (Sir William Snow, F.R.S.) On CERTAIN PHENOMENA of ELECTRICAL DISCHARGE, 

 8vo. (pp. 6), sewn, with inscr. to Dr. T. L. Phipson, \s Qd 1856 



8940 On the CORRECT INTERPRETATION of the Electrical Terms: INTENSITY and TENSION, 



with plate, 8vo. (pp. 12), sewn, with inscr. to Dr. Phipson, Is Qd 1863 



8941 INQUIRIES concerning the ELEMENTARY LAWS of ELECTRICITY, 2ND SERIES, with 6 



copperplates, 4to. (pp. 36), sewn, with inscr. to Henry Warburton, M.P., 3s 6d 1836 



8942 FURTHER INQUIRIES concerning the LAWS and OPERATION of ELECTRICAL FORCE, 8vo. 



(pp. 12), sewn, Is 6d 1864 



8943 On a GENERAL LAW of ELECTRICAL DISCHARGE, with plate, 8vo. (pp. 21), sewn, with 



inscr. to Dr. Phipson, 2s 1856 



8944 INSTRUCTIONS for the APPLICATION of PERMANENTLY FIXED CONDUCTORS of LIGHTNING 



to H. M.'s SHIPS, with 6 coloured plates, besides woodcuts, 8vo. hf. calf (scarce), 8s Qd 1848 



The peculiarity of the author's lightning conductor for ships was that the metal was permanently fixed in the maste 

 and extended throughout the hull. 



8945 On the NATURE of THUNDERSTORMS, and the Means of PROTECTING BUILDINGS and 



SHIPPING against LIGHTNING, plates and woodcuts, 8vo. cl., uncut (scarce), 12s Qd 1843 



8946 ANOTHER COPY, hf. calf (slightly soiled and binding damaged), 8s 



A full account of his invention of a ship's lightning conductor, and an answer to his critics. His system was adopted 

 in the Royal Navy in 1839, and rewarded with an annuity of 300. by the Government, and later with a knighthood and a 

 grant of 5000 -an unusual example of official gratitude. 



8947 RESEARCHES in STATICAL ELECTRICITY, with plate, 8vo. (pp. 27), sewn, 2s 1857 



8948 TREATISE on FRICTION AL ELECTRICITY, in Theory and Practice, edited, with Memoir, 



by CHARLES TOMLINSON, F.R.S., with numerous woodcuts, 8vo. cl. (scarce), 10s 1867 



A work of well-known merit, including chapters on Accumulators, and on Electrical Manipulation. The author was 

 awarded the Royal Society's Copley Medal for his researches on the laws of electricity of high tension, and the Bakerian prize 

 for his ' Inquiries concerning the Elementary Laws of Electricity '. 



8949 HARRISON (James, bell-founder, Barton-on- Number ; grand-nephew of f Longitude Harrison ') 

 INTRODUCTION to a TREATISE on the PROPORTIONS and CONSTITUENT PARTS of BELLS, and on 

 the relative Proportions of Bells of different Degrees of Acuteness and Gravity to each other, 

 etc. etc. etc., with plate, 8vo. sewn (VERY SCARCE), 12s Qd Hull, 1831 



8950 , BIOGRAPHICAL NOTICE of, by THOMAS NORTH, F.S.A., a Manuscript* on 2 pages, folio, 



5s 1882 



8951 HARRISON (Joseph), and G-. A. B AX AND ALL : PRACTICAL PLANE and SOLID 

 GEOMETRY for Advanced Students, including GRAPHIC STATICS, with numerous diagrams, fcap. 

 8vo. cl., 2s 6d (p. 4s Qd) 1904 



8952 HARRISON (Newton) PRACTICAL ALTERNATING CURRENTS and POWER TRANSMISSION, with 

 172 illustrations, cr. 8vo. cl., 6s (p. 10s 6d nett) New York, 1906 



8953 HARRISON (Thomas and James) The COMPLETE OBSERVATOR, containing the various 

 METHODS of FINDING the LATITUDE, . . . and of CORRECTING the WATCH, never before 

 published, with a New Method of finding the Latitude . . . with a complete Set of Tables, and 

 the Method of determining the Longitude by Lunar Observations, with a New, Concise, Easy, and 

 Infallible Method, 4to. sewn (rare), 10s Qd * York, 1788 



