2 *Hii:NRY SbTH'ERA'N,& CO., 140, STKAND, W.C, and 37, PICCADILLY, W. 



11 A^N^JY". (Sij^ ' '.WilKia^a de,' Wiveleslie, f.r.s.) The Action of Light in Photography, 

 - 71 'itfoOo^ukfVtc^'/'C'^f^ro. s'evJn, Is Qd 1897 



12 — '- — Colour Measurement and Mixture, illustrated, 12mo. cl., \s 6c? 1891 



13 Colour Vision : Tyndall Lectures in 1894, coloured front., and numerous diagrams, 8vo. 



cL, 6s (p. 12.S M) 1895 



14 Instruction in Photography, 11th [last] Ed. [including Additions on Colour Photo- 

 graphy], ivith 209 illustrations, thick post 8vo. cL, 5s (sells 7* Qd nett) 1905 



15 The Scientific Requirements of Colour Photography, illustrated, 8v6. (pp. 23), sewn, 



Is 1897 



16 : The Sensitiveness of the Retina to Light and Colour, 19 diagrams, roy. 4to. (pp. 41), 



seicn. Is 6d 1897 



17 ACOUM (Friedrich Christian) Chemical Amusement : Curious and Instructive Experiments 



in Chemistry, which are easily performed and unattended by Danger, first edition, post 8vo. 

 original hoards, uncut. Is Qd 1819 



At end is a 59-p. list of ' Clieinical Apparatus and Instrusneuts ', and ' Chemical Preparations for Philosophical Amuse- 

 ment ', containing a minute description of nearly all chemical apparatus, as well as practically all chemicals, in use at the 

 time, WITH PRICES. 



18 Description of the Process of Manufacturing Coal Gas, for the Lighting of Streets, 



Houses, and Public Buildings, with Elevations, Sections, and Plans of the most improved sorts of 

 Apparatus now employed at the Gas Works in London, and the principal Provincial Towns of 

 Gt. Britain, with comparative Estimates, exhibiting the most Economical Mode of procuring this 

 species of Light, first edition, icith coloured front., and 6 fne coloured folding plates^ large 

 8vo. original figured boards, unc^d (scarce), £1. 155 1819 



19 Another Copy, 8vo. hf cl. {stamp on title), £1. bs 



20 Second Edition, ivith coloured front., and Q fine coloured folding plates, large 8vo. 



original figured hoards, uncut {hack defective, otherwise a fine copy), £1. 7s Qd 1820 



This forms to a certain extent a suppleniaiit to the ' Practical Treatise on Gas Light' (7. v. infra), and treats the subject 

 wholly from a technical standpoint. These two works together form a complete treatise on the state of the science in its 

 very infancy, while the fine illustrations depict most accurately the methods and ai)paratus used at the time, and form an 

 unusual series of ' Ackermann Plates '. 



The discovery of coal gas was due to John Clayton, Dean of Kildare, who communicated his experiments to the Hon. 

 Robert Boyle some time before 1(391. It was lirst employed for lighting purposes by Lord Dundonald in 17S7, and on a 

 larger scale by William Murdoch, who ia 1798 lit up a part of Boulton & Watt's Manufactory at Soho, Birmingham. 



21 Elements of Crystallography, after the Method of Hauy; with, or without, Series of 



Geometrical Models, both Solid and Dissected, icith 4: co2)perplatcs {slightly foxed), and ivoodcut 

 figures, 8vo. hoards, uncut, Qs Qd 1813 



The first English treatise on Crystallography on the structural theory, based on Haiiy's epoch-making work. 



22 Practical Treatise on Gas Light ; exhibiting a summary Description of the 



Apparatus and Machinery best calculated for Illuminating Streets, Houses, and Manufactories 

 with Carburetted Hydrogen, or Coal Gas ; with Remarks on the Utility, Safety, and General 

 Nature of this new branch of Civil Economy, first edition, with 7 fine coloured plates {2 folding), 

 and 2 woodcuts, roy. 8vo. boards, uncut (scarce), £1. 155 R. Ackermann, 1815 



23 Another Copy, luith the last plate defective, roy. 8vo. old hf calf, \Ss Qd 



This important work is the first practical treatise on (ias lighting, and was immediately translated into German, 

 French, and Italian. The author was engineer of the London Chartered Gaslight and Coke Co., formed in 1810, and ' it is 

 said that the prompt adoption of this mode of lighting in London and other large cities was greatly due to his Practical 

 Treatise, on Gas Light.' — D. N. B. 



24 Second Edition, with 7 fine coloured plates (2 folding), and 2 woodcuts, roy. 8vo. 



hoards, uncut (scarce), £1. 10* ' apnd eundem, 1815 



This edition, besides a few additions, contains an interesting preface : ' A large part of London is illuminated with Gas- 

 Light, more than 4000 Argand's lamps now burn coal gas in this metropolis . . . The total length of main pipes deposited 

 in the streets of London, for conveying carburetted hydrogen gas, exceeds 2(3 miles.' Some of the plates illustrate early 

 gas-fittings in private houses, some of which are not in quite such bad taste as might be expected. 



25 Practical Treatise on the Use and Application of Chemical Tests, with concise 



Instructions for Analysing Metallic Ores, Metals, Soils, Manures, and Mineral Waters, 2nd Ed., 

 enlarged, with copperplates, post 8vo. original boards, uncut, 5s 1818 



Interesting as an early work on the subject. 



26 System of Theoretical and Practical Chemistry, 2nd Ed., considerably enlarged and 



improved, ivith 7 copperplates, 2 vols. 8vo. hf calf {nice copy) ; scarce, \0s Qd 1807 



Interesting as a compendium of the science as then known, and givinj? numerous experiments to illustrate the theory 

 of heat, chemical affinity, and other laws just beginning to revolutionize the science. The second edition contains 

 additional plates, illusti'ating new chemical instruments, etc. 



27 Treatise on the Art of Brewing, exhibiting the London Practice of Brewing Porter, 



Brown Stout, Ale, Table Beer, and other Malt Liquors, 2nd Ed. [enlarged], with coloured front, 

 and vignette, post 8vo. original boards, uncut {scarce), 10s Qd 1821 



' My main object has been to divest the art of brewing of the mystery in which it has been involved by interested 

 persons '. — Preface. 



The author came to England in 1793, and became engineer to the London Gas Light Co., and librarian to the Royal 

 Institution. But dismissed from the latter office (for alleged book thefts) he returned to Berlin in 1822. 



28 ACTA ERUDITORUM, anno MDCLXXXIII publicata ; with W plates, diagrams, etc, sm. 4to. 



old calf, Is Qd ' Lipsiae, 1683 



20 ACWO'RTH (William Mitchell) The Railavays of England, with numerous full-page and 



other illustrations, 8vo. cl., 4s (p. 14s) 1889 



30 The R.vilways of SCOTLAND : their Present, Past, and Future, map, post 8vo. cl., 2.s Qd 



(p. 5s) 1890 



31 ADAMS (George [the younger^) Essay on Vision, briefly explaining the Fabric of the Eye, and 



the Nature of Vision, /ron^ on copper, 12mo. sewn, 2s Qd 1789 



