HENRY SOTHERAN & CO., 140, STRAND, W.C., AND 37, PICCADILLY, W. 103 



2033 HUNT (Robert, F.R.S.) RESEARCHES on LIGHT : the Phenomena connected with the Chemical 

 and Molecular Changes produced by the Influence of the Solar Rays, embracing all the known 

 PHOTOGRAPHIC PROCESSES, and NEW DISCOVERIES in the Art, coloured front., and woodcuts, 

 Svo cl., 6s Qd 1844 



'Another experimenter who tried to obtain the natural colours of objects by means of photography was Robert Hunt. 

 These researches took place between 1840 and 1843, and the result* were set forth in his work 'Researches on Light', 

 published in 1844.' A T. Story. 



2034 - SECOND EDITION [greatly enlarged] , with folding front., and woodcuts, 8vo. cl., 8s Qd 1854 



' Mainly a history of photography ; but the 2nd edition (1854) contained a large number of original experiments and new 

 ' analyses of the solar ray '.' D. N.~B. 



2035 HUNT (Thomas Sterry, F.R.S.) CHEMICAL and GEOLOGICAL ESSAYS, 8vo. cl. (scarce], 10s Qd 



Boston [Mass.], 1875 



Containing the author's researches on the composition of rocks ' which were of great importance.' He was the inventor 

 of the green ink with which ' greenbacks ' are printed. 



2036 HUTTON (Charles, F.R.S.) The COMPENDIOUS MEASURER : a Brief, yet Comprehensive, 

 Treatise on Mensuration, and Practical Geometry, with Introduction to Arithmetic, woodcuts, 

 12uio. sheep extra ( fine copy), Qs Qd 1807 



2037 COURSE of MATHEMATICS, for the Use of the Royal Military Academy, Woolwich, 8th 



Ed., by OLINTHUS GREGORY, diagrams, 3 v., '24-20 : Key by DANIEL DOWLING, '204 vols. 8vo. 

 boards, 3s Qd 1824-20 



2038 NEW EDITION, wholly remodelled by WILLIAM RAMSAY, diagrams, thick 8vo. boards, 



2s Qd 1833 



2039 TWELFTH EDITION, continued and amended by OLINTHUS GREGORY, with considerable 



Additions by THOMAS STEPHENS DAVIES, F.R.S., 2 v. cl. (stained), '41-3: Key by T. S. DAVIES, 

 hf. cl., '403 vols. 8vo. ivith diagrams ; Qs Qd 1841-3-0 



2040 : HICKIE (James) KEY to RUTHERFORD'S EDITION of Hutton's Course of Mathematics, 



diagrams, 8vo cl., 2s Qd 1849 



2041 - - The DiARiAN MISCELLANY : Useful and Entertaining Parts, both Mathematical and 

 Poetical, extracted from the LADIES' DIARY, 1704-73, with many additional SOLUTIONS and 

 Improvements, illustrated, 5 vols. 12mo. old calf, 10s Qd 1775 



2042 - - MATHEMATICAL TABLES, with a large and original HISTORY of the DISCOVERIES and 

 Writings relating to those Subjects, etc. etc., first edition, roy. 8vo. new buckram (corner cut off 

 title) ; rare, 12s Qd 1785 



2043 - - FIFTH EDITION, roy. Svo. hf. calf, 5s Qd 1811 



2044 - SIXTH EDITION, large roy. Svo. boards, uncut, 7s Qd 1822 



1 With introduction, still valued as an interesting and learned history of logarithmic work. Button deprecates the 

 theory of Napier's [q. v. post] originality as the inventor of logarithms. He suggested the plan of the great work on 

 logarithms which was afterwards compiled by his friend, Baron Maseres.' D. N. B. 



2045 MATHEMATICAL and PHILOSOPHICAL DICTIONARY, with Historical Account and MEM- 

 OIRS of AUTHORS Ancient and Modern, first edition, with plates, 2 vols. 4to. old hf. calf (binding 

 damaged), Qs Qd 1796 



2046 - SECOND [LAST] EDITION [enlarged], with 41 copperplates, and numerous diagrams, 2 vols. 

 4to. old hf. calf, 12s Qd 1815 



2047 ANOTHER COPY, with portrait on copper (inserted], 2 vols. 4to. old tree-calf gilt, newly 



and neatly rebacked, 16s Qd 



The first mathematical dictionary in English, and still valuable for the biographical information it contains. 



2048 - The PRINCIPLES of BRIDGES : Mathematical Demonstrations of the Properties of Arches, 

 the Thickness of Piers, etc. etc., 2nd Ed., with Additions, diagrams, 12mo. sewn, 4s 1801 



Written on the occasion of Newcastle Bridge being injured by a flood. It is valuable for establishing the mathematical 

 principle of the law of arches. 



2049 - - RECREATIONS in MATHEMATICS and NATURAL PHILOSOPHY, first composed by M. 

 OZANAM, lately recomposed by M. MONTUCLA, and now trans., with many Additions and Observ- 

 ations, nearly 100 copperplates, 4 vols. Svo. in 2, cl., 8s Qd 1814 



2050 - - TRACTS on MATHEMATICAL and PHILOSOPHICAL SUBJECTS, including the Theory of 

 BRIDGES, and experiments on the FORCE of GUNPOWDER, with fine portrait by C. Turner, plates, 

 and diagrams, 3 vols. Svo. contemporary tree-calf (fine copy), with bookplate 'of Charles 3rd Earl 

 Stanhope, F.R.S, 12s Qd 1812 



- ANOTHER COPY, 3 vols. boards, uncut, 9s Qd 



2052 - - TREATISE on MENSURATION, in Theory and Practice, with numerous diagrams by THOMAS 

 BEWICK, thick 4to. old hf. calf gilt (fine copy), with Earl Stanhope's bookplate, 15s 



Newcastle-on-Tyne, 1770 



The diagrams in this work are by THOMAS BEWICK, the celebrated wood-engraver, and form his first essay at 

 book illustration. 



2053 - - FOURTH EDITION, with many Additions, diagrams, thick Svo. boards, uncut, 5s 1812 



Hutton, who became one of the foremost mathematicians of his time, and the value of whose work in computing the 

 earth's density was acknowledged by Laplace, began life as a hewer in Long Benton Colliery near Newcastle-on-tyne. 

 ' All his books were of a professional and practical character, and are invariably clear and accurate.' D. N. B. 



2054 HUTTON (James, M.D.) DISSERTATIONS on different Subjects in NATURAL PHILOSOPHY, 4to. old 

 calf (fine tall copy), ivith bookplate of Philip 2nd Earl Stanhope, F.R.S. (RARE), 1. Is Edin., 1792 



Containing the ' Meteorological Dissertations on Rain and Wind ', one of his most important works, wherein he ascribes 

 the formation of rain to the mingling of two strata of air of different temperatures and the subsequent condensation of the 

 mixture ; also papers on phlogiston, and the laws of matter and motion. 



' Hutton ranks as the first great English geologist.' D. N. B. 



2055 HUXLEY (Thomas Henry, F.R.S.) PHYSIOGRAPHY: an Introduction to the Study of Nature, 

 New Ed., 5 coloured plates, and 122 woodcuts, cr. Svo. cl., 3s (p. 6s) 1882 or '90 



