462 HENRY SOTHERAN & CO., 140, STRAND. W.C, and 43, PICCADILLY, W. 



9149 HENRY (William, M.D., f.r.s.) On the Action of Finely Divided Platinum on Gaseous 

 Mixtures, and its Application to their Analysis, 4to. (pp. 26), seivn, ivith inscr. to Thomas 

 Allan, F.R.S. , 45 1824 



Following; up Dobereiner's investigations on the peculiar properties of spongy platinum. 



9150 Additional Experiments on the Muriatic and Oxymuriatic Acids, 4to. (pp. 11), 



sewn {name torn off title), 2s 1812 



9151 On the Aeriform Compounds of Charcoal and Hydrogen, with some additional 



Experiments on the Gases from Oil and from Coal, 4to. (pp. 26), seivn, with author's inscr., 

 3s 1821 



9152 Analysis of Several Varieties of British and Foreign Salt (Muriate of Soda) with 



a View to explain their Fitness for different Economical Purposes, 4to. (pp. 34), seivn, with inscr. 

 to Thomas Allan, F.R.S. , 3s Qd 1810 



9153 Elements of Experimental Chemistry ; 6th Edition, greatly enlarged, with ^plates by 



Lowry, 2 vols. 8vo. old calf {joints cracked), 5s 1810 



9154 Seventh Edition, greatly enlarged, ivith 9 plates hy Loivrv, 2 vols. 8vo. boards, uncut, 



7s ^d " 1815 



9155 Tenth Edition, with all the recent Discoveries, 10 plates by Lowry, besides woodcuts, 



2 vols. 8vo. hf. calf {joint cracked), 8s %d 1826 



9156 Eleventh Edition, comprehending all recent Discoveries, with 10 plates, and ivoodcuts, 



2 vols. 8vo. cl. (scarce), 15s 1829 



The LAST EDITION, enlarged and with Addenda, and first containing an account on bromine (discovered in 1826 by A. J. 

 Balard)and its compounds. Once a inuch-esteeraed text-book, it is still of value to the historian of chemistry for the 

 accurate and precise information it contains of the achievements during one of the most fruitful periods in the science. 



9157 An Epitome of Chemistry, containing Directions for the Analysis of Mineral Waters ; 



of Earths and Stones ; of Ores of Metals, and Instructions for applying Chemical Tests and 

 Reagents, etc., 2nd Edition, 12mo. hf. brown morocco {nice copy), ivith the Beaufoy Library 

 bookplate {scarce), 7s 6c? 1801 



9158 Fourth Edition, much enlarged, with 8 plates, 8vo. boards, Is 6d Edin., 1806 



9159 Another Copy, old hf. calf gilt, 8s 6d 



This work was afterwards republished in an enlarged form, as ' Elements of Experimental Chemistry '. 



.9160 Experiments on Ammonia, and Account of a New Method of analysing it, by Com- 

 bustion with Oxygen and other Gases, 4to. (pp. 20), sewn, with inscr. to Thomas Allan, F.R.S., 

 5s 1809 



Dr. William Henry is perhaps best known for having ascertained (in the above paper) the true composition of 

 ammonia, which had been heretofore taken as a chemical compound containing oxygen. He also established the fact 

 that the amount of absorption of a gas or of a mixture of gases by a fluid is dependent on the pressure. He was one of 

 the most cultivated members of the Manchester society of his time, and should please the age we live in for having chosen 

 as his doctoral thesis the entrancing subject of Uric Acid ! 



9161 HENSHAW (Nathaniel, m.d., f.r.s.) Aero-Chalinos : or a Register for the Air; of 

 Fermentation ; Chylification ; Respiration ; Sanguification ; that often changing the Air, is a 

 friend to Health : also a Discovery of a new Method of doing it, without removing from one place 

 to another, by means of a DOMICIL, or Air-Chamber, fitted to that Purpose ; for the better 

 Preservation of Health, and Cure of Diseases, after a New Method ; 2nd Edition, 18mo,^we copy 

 in old sheep (rare), £1. Is B. Tooke, 1677 



' a curious little treatise. . . The second edition was printed by order of the Royal Society, having been prepared for 

 the press by the author's elder brother, Thomas Henshaw. It was reviewed in the Philosophical Transactions (Xll. 834-5) 

 by Henry Oldenburg.'— 1>. N. B. 



9162 HEP WORTH (Commander Melville Willis Campbell, r.n.r., f.r.a.s.) Notes on Maritime 

 Meteorology, with 1 folding charts, 8vo. cl., 2s 1907 



9163 HERAPATH {John; founder of ' Herapath's Railway Journal ') Mathematical Physics ; or 

 theMathematical Principles of Natural Philosophy : with a Development of the Causes of Heat, 

 Gaseous Elasticity, Gravitation, etc., ivith 4 folding plates, and ^folding tables, 2 vols. 8vo. cl. 

 {scarce), \Qs Qd 1847 



A strikingly original treatise, chiefly based on the author's theory of gravitation, which was refused by the Royal 

 Society, but published in the 'Annals of Philosophy.' He was invited by Lord Brougham to be corrector and editor of 

 his mathematical papers, but after getting some way ended, as might have been foreseen, in a quarrel with his equally 

 self-opinionated patron. 



9164 HERBERT (Thomas Ernest) Electricity in its Application to Telegraphy ; third 

 Edition, with 48 woodcuts, cr. 8vo. cl., Is %d 1897 



9165 Telegraphy : a detailed Exposition of the Telegraph System of the British Post Office, 



loith 509 illustrations, thick cr. 8vo. cl., is (p. 6* 6c? nett) 1906 



9166 The Telephone System of the British Post Office, with 145 illustrations, cr. 8vo. 



cl., \s6d 1898 



9167 HERBINIUS (Johann) Dissertationes de Admirandis MuNDi Cataractis Supra et 

 Subterraneis, earumque Principio, Elementorum Circulatione, ubi eadem Occasions 

 iEsTUS Maris reflui Vera et Genuina Causa asseritur, necnon Terrestri ac Primi^enio Paradise, 

 Locus Situsque verus in Palsestina restituitur, in Tabula Chorographica ostenditur, et contra 

 Utopios Indianos, Mesopotamios, aliosque asseritur; with engraved title, and numerous other 

 fine engravings on copper {some folding), sm. 4to. old calf gilt {back slightly damaged) ; with 

 British Museum bookstamp (rare), £1. \s Amst., Jansson-Waesberg, 1678 



' Ouvrage fort curieux, et qui a le plus contribue a etendre la reputation de Herbiuius.'— jBiogrr. Gen.. Herbinius was a 

 zealous opponent of the Copernican theory. 



9168 HERMANN (Robert Alfred, Fellow of Trinity) Treatise on Geometrical Optics, with 

 107 diagrams, 8vo. cl., 6* %d (p. lOs nett) Univ. Press, Cambridge, 1900 



' Introducing a new method of determining the properties of a symmetrical optical instrument, in which the angle of 

 divergence of a small pencil, rather than any coordinate of its origin, has been adopted as the leading feature.'— Pre/oce. 



