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



11 ABNEY (Sir William de Wiveleslie, F.R.S.) The ACTION of LIGHT in PHOTOGRAPHY, 

 71 uoodcut^, etc., f;i-.8v3. sewn, Is Qd 1897 



12 < CO'L6uR'M r EksUREMENT and MIXTURE, illustrated, 12mo. cl., Is Qd 1891 



13 COLOUR .ViSJON r'Tyndall Lectures in 1894, coloured front., and numerous diagrams, Svo. 



' r$-j"5fc. (P,- iQsftti) r A"- . / 1895 



14 ' r 1 iNSfRtfcfriOft* in PHOTOGRAPHY, llth [last] Ed. [including Additions on Colour Photo- 

 graphy], with 209 illustrations, thick post Svo. cl., 5s (sells 75 Qd nett) 1905 



15 The SCIENTIFIC REQUIREMENTS of COLOUR PHOTOGRAPHY, illustrated, Svo. (pp. 23), sewn, 



Is 1897 



16 : The SENSITIVENESS of the RETINA to LIGHT and COLOUR, 19 diagrams, roy. 4to. (pp. 41), 



sewn, Is Qd 1897 



17 ACGUM (Friedrich Christian) CHEMICAL AMUSEMENT : Curious and Instructive Experiments 



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

 original boards, uncut, 7s Qd 1819 



At end is a 59-p. list of ' Chemical Apparatus and Instruments ', 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, with coloured front., and Q fine COLOURED FOLDING PLATES, large 

 Svo. original figured boards, uncut (SCARCE), 1. 155 1819 



19 ANOTHE*R COPY, Svo. hf. cl. (stamp on title),. 1. 5s 



20 SECOND EDITION, with coloured front., and Qfinc COLOURED FOLDING PLATES, large Svo. 



original figured boards, uncut (back defective, otherwise a FINE COPY), 1. 75 Qd 1820 



This forms to a certain extent a supplement to the ' Practical Treatise on Gas Light' (q. 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 apparatus 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 1091. It was iirst employed for lighting purposes by Lord Dundonald in 1787, and on a 

 larger scale by William Murdoch, who in 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, with ^copperplates (slightly foxed), and woodcut 

 figures, Svo. boards, 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. Svo. boards, uncut (SCARCE), 1. 15$ R. Ackermann, 1815 



23 - ANOTHER COPY, with the last plate defective, roy. Svo. old hf. calf, 185 Qd 



This important work is the FIRST PRACTICAL TREATISE ON GAS LIGHTING, and was immediately translated into German, 

 French, and Italian. The author was engineer of the London Chartered Gaslight and Coke Co., formed in 1S10, 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. U. 



24 SECOND EDITION, with 7 fine COLOURED PLATES (2 folding), and 2 woodcuts, roy. 8vo. 



boards, uncut (SCARCE), 1. 10s ' 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 oarburetted hydrogen gas, exceeds 26 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 Svo. 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, with 7 copperplates, 2 vols. Svo. hf. calf (nice copy) ; scarce, 105 Qd 1807 



Interesting as a compendium of the science as then known, and giving 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, illustrating 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 Svo. original boards, uncut (scarce), 105 Qd 1821 



1 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 EBUDITORUM, anno MDCLXXXIII publicata ; with 11 plates, diagrams, etc., sm. 4to. 



old calf, 7s Qd Lipsiae, 1683 



23 ACWORTH (William Mitchell) The RAILWAYS of ENGLAND, with numerous full-page and 



other illustrations, Svo. cl., 45 (p. 14s) 1889 



30 The RAILWAYS of SCOTLAND : their Present, Past, and Future, map, post Svo. cl., 2* Qd 



(p. 55) 1S90 



31 ADAMS (George [the younger]) ESSAY on VISION, briefly explaining the Fabric of the Eye, and 

 the Nature of Vision, front, on copper, 12mo. seivn, 2s Qd 1789 



