HENRY SOTHERAN v^ CO., 140, STRAND, W.C, and 37, PICCADILLY, W. 90 



1959 HOFF (Jacobus Hendrik van 't) Sterkochemie, iiacli ' Dix Annees dans I'Histoiie d'une 

 Theorie,' unter Mitwirkung de^* Verfassers neu V)earbeitet von W. Meyerhoffer; with diagrams^ 

 8vo. cl, 36- (p. M. 5.) Wien, 1892 



I960 Studies in Chemical Dynamics, revised and enlarged by Ernest Cohen, trans, by 



Thomas Ewan, with Preface by the Author; 49 illustrations, roy. Svo., c/., 55 (p. 10* M) 



Amsterdam, 1896 



1931 HOFFMANN (Friedrich) Observationum Physico-Chemicarum selectiorum Libri III, 

 in (juibus niulta curiosa Experimenta et lectissimie Virtutis Medicamenta exhibentur, 4to. 

 old calf. Us Halcv,lT22 



TIh- author made many imiwrtant investigations and discoveries in pharmaceutical an<l analytical chemistry, includinj; 

 an analysis of mineral waters, and did good work in combating the iatro-chemical doctrines of Sylvius and Tachenius, hut 

 is perhaps best known by his invention of ' Hoffmann's Anrxlyne', which is still in use as spiritns ailieris composUits of the 

 British Pliarniacopd.ia. 



19(ji HOFFMANN (Johann Josef Ignaz v.) Abhandlunoen aiis der Mathematik und Physik, 

 nel)st niatlieniatischen und physischen Belustigungen ; loith 15 folding plates, 8vo. sewn, uncut, 5s 



Mainz, 1838 



1963 HOFMANN (August Wilhelin v. ; f.r.s.) Zur Erinnerung an vorangegangene Freunde : 

 (Jksammelte Gedachtnissreden ; with portraits and fss. , 3 vols. 8vo. cl., \os (p. M. 23.) 



Braunschweig, 1888 

 • Geurgc V. Wilson Es(i. with the Author's affectionate regards. April S, '89.'— /nscr. on flyleaf. See also Liebig, post. 



1964 HOLDEN (Edward Singleton, Director Lick Observatory) Mountain Observatories in 

 America and Europe, with numerous plates, 8vo. sewn, 3.y Washington, 1896 



1905 HOLDER (William, f.r.s., Canon of St. Paul's) DISCOURSE concerning Time, witli 

 Application of the Natural Day, the Lunar Month, and Solar Year, as Natural ; and of such as 

 are derived from them, as Artificial Parts of Times, for Measures in Civil and Common Use : for 

 the better Understanding of the Julian Year and Calendar, etc., etc., first edition, large 

 12mo. original sheep, 10s 6d 1694 



The author's last work. Ho was an accomplished musician, and also did much in teaching the deaf and dumb, one of 

 whom, an Alexamler Pnpham, he biught to si<eak, though he afterwards temporarily relapsed. lie marrietl an elder sister 

 of Sir Christopher Wren, and had much to do with the latter's education. 



]tM)6 HOLLAND (Sir Henry, m.d., f.r.s.) Essays on Scientific and other Subjects, 8vo. cl., os 1862 



1967 Another Copy, hf. green Levafit morocco gilt, uncut, t. e. g. {fine copy), 8« 



1968 Second Edition [revised and enlar«^ed], 8vo. cl., 6.y ' 1862 



Containing essays on astronomical, physical, and chemical subjects. 



1969 Fragmentary Papers on Science and other Subjects, edited by his Son, Francis 



James Holland, Canon of Canterbury, 8vo. cl., 5s 187/> 



litJO [HOLLAND (John)] Treatise on "the Progressive Lmprovement and Present State of 

 the Manufactures in Metal, vignettes by Finden, and 300 woodcuts, 3 vols. fcap. Svo. hf. calf 

 {nice copy), 5s 1831-4 



1971 HOLiiEMAN (A. F., Univ. Amsterdam) Text-Book of Organic Chemistry, trans, from 

 the 2nd Dutch Edition by A. Jamieson Walker and Owen E. Mott, illustrated, 2 vols. 8vo. 

 cL, Is (p. 106- Qd nett) New York, 1903 



One of the best text-books on the subject. 



197-2 HOLMES (J. H. H., k.s.a.) Treatise on the Coal Mines of Durham and Northumberland; 

 with the Stratilications of the two Counties, and Accounts of Explosions from P'ire-Damp for 

 the last 20 Years, with Means proposed for their Remedy, and for the General Improvement of 

 the Mining System, by New Methods of Ventilation, 6 plates, and map, 8vo. boards [rare), 

 \2s irl 1816 



Plate 6 illustrates Clanny's, Brandling's, and Murray's Safety Lamps. 



1973 HOLTZAPFFEL (Charles) New System of Scales of Equal Parts, applicable to various 

 l)urposes of ENGINEERING, etc., with folding plate of the Scales, 8vo. cl., 4.s 1833 



The author's first work. 



1974 Turning and Mechanical Manipulation : a Work of General Reference and Practical 



Instruction on the Lathe, and the various Mechanical Pursuits followed by Amateurs : Vols. I, 

 II, IV, and V, with very numerous plates and ivoodcuts, 4 vols. 8vo. cl., £2. 12.y %d 1846-84 



CoNTKNTs:— L Materials, their Preparation and Figuration, '4(>: II. Con.struction, Action, and Application of Cutting 

 Tools, 'Ti) : IV. The Practice of Hand or Simpl*? Turning, '79 : V. The Practice of Ornamental and Complex Turning, '84. 



197o HOLWELL (John, Philomath) A Sure Guide to the Practical Surveyor, also how to 

 convey Water from any Sprin;,'-Head, to any appointed place ; THE like never before EXTANT 

 [includinj^ a Table for finding the Longitude and Latitude], ivith plates and diagrams, sm. 

 8vo. contemporary calf [rare), I5s 1678 



The author's first publi.'»hed work. 



1976 Trigonometry made Easy; fitted to the meanest Capacity, Opiates, 16mo. nice copy in 



contemporary sheep, loith bookplate of Philip 2nd Earl Stanhope, F.U.S., 6s 1685 



The author combined astrology, mathematics, and an extensive practice as a surveyor, and was grandfather of Johm 

 Zei'haniah Holwkll, Governor of Bengal, and a survivor of the Black Hole of CalcutU. He was sent in 1G85 on a 

 Government mission to Nbw York, ami died there, it is said of poison, .as it was not wi.shed to have him back again. 



1977 HOOD (Charles, f.r.s.) Practical Treatise on Warming Buildings, on Ventilation, and 

 on the Laws of Radiant and Conducted Heat, the Chemical Constitution of Coal, and the Com- 

 bustion of Smoke ; 5th Ed., greatly enlarged, woodcuts, 8vo. cl., Zs Qd (p. lO-s 6d) 1879 



1978 HOOPER (William, md) Rational Recreations, in which the Principles of Numbers 

 and Natural Philosophy are clearly and copiously elucidated, by a Series of Easy, Entertain- 

 ing, Intere.sting Experiments, including those commonly performed with the Cards, with 65 fold- 

 ing plates on copper, 4 vols. 8vo. contemporary calf extra {fine copy), 15s 1774 



1!>79 Third Edition, corrected, with 65 fnc folding plates on copper (all handcoloured), 



4 vols. 8\o, ronfrmporary trcccfdf gilt {nirc copy), £1. \s 1787 



