HENRY SOTHERAN & CO., 140, STRAND, W.C, and 43, PICCADILLY, W. 479 



9524 HUBBARD (T. O'B.), J. H. LEDEBOEB, and C. C. TURNER: The Aeroplane: an 

 Elementary Text-Book of the Principles of Dynamic Flight, with 4 plates and 35 diagrams, 

 post 8vo. cL, 2s 1911 



9525 [HUDD ART (Capt. Joseph ; Indian Navy ; f.r.s. ; Eider Brother of Trinity House)] Reports 

 on Warm Registered Cordage, manufactured by Messrs. Huddart & Co., Limehouse, 8vo. 

 (pp. 29), sewn, os 1815 



' The accident of a cable parting had turned his attention to the faulty manufacture of rope, and he invented a method 

 ' for the equal distribution of the strains on the yarns '.'— D. N. B. 



9526 HUDSON (John Rogers) Tables for Calculating the Cubic Contents of Excavations 

 and Embankments, third [latest] Edition, with 9 diagrams, Svo. el., 3s (p. 4* Grfnett) New York, 1902 



9527 HUDSON (Ronald William Henry Turnbull) The Analytic Theory of Displacements, 

 8vo. (pp. 21), sewn, Is 6d New York, 1903 



The "author had a brilliant mathematical career and became a Fellow of St. John's College, Cambridge, but was killed 

 in rock-climbing in Wales in 1904 in his twenty-ninth year. 



9528 HUGGINS (Sir William, p.r.s., spectroscopic astronomer) On Comets, with front. ^ etc., Svo. 

 (pp. 11), sewn, \s%d 1882 



9529 Preliminary Note on the Photographic Spectrum of Comet h 1881, with plate, 8vo. 



(pp. 3), unbound, \s Qd 1881 



9530 [ ] Results of some Observations on the Bright Granules of the Solar Surface, 



with the Nature of these Bodies, diagrams, 8vo. (pp. 6), unbound, with author's inser.,2s [c. 1867] 



9531 On the Results of Spectrum Analysis applied to Heavenly Bodies : a Discourse 



before the British Association, at Nottingham, Aug. 24, 1866, with Appendix, i^^A 18 photographs, 

 cr. 8vo. cl. {scarce), 6s 6d [1866] 



One of the author's earliest accounts of his great astro-spectroscopic investigations, and of his discovery by spectrum 

 analysis of the gaseous contents of nebulae, 



9532 Analyse Spectrale des Corps Celestes, traduite par I'Abbe F. N. M. Moigno ; ivith 



18 woodcuts, cr. Svo. sewn {o.p.), 3s Qd 1866 



9533 The Royal Society, or, Science in the State and in the Schools, with 23 portraits and 



plates, besides vignettes, impl. 8vo. cl., 3s [1906] 



9534 On the Spectrum of the Great Nebula in the Sword-Handle of Orion, Svo. (pp. 4), 



unbound, 2s 1865 



Sir William Huggins was probably the greatest of the honourable company of amateur astronomers ; and his comrade- 

 ship in wedlock and investigation with Lady Huooins shares a like lustre to that of M. and Mme. Curie. 



9535 HUGHES (Edward George, c.E.) Comprehensive Tables for the Calculation of Earth- 

 work, as connected with Railways, Canals, Docks, Harbours, etc., giving the Quantities for Each 

 Base and Slope at one View, with Practical Treatise on Earthwork in General [with APPENDIX], 

 plate, oblong 4to. cl., loith auto, of George Rennie, F.R.S. , Qs 6d (p. £1. 8s) 1846 



Written with special reference to railway work. 



9536 HUGHES {John, ce.) On the Pneumatic Method adopted in constructing the Foundations 

 of the New Bridge across the Medway at Rochester, 4to. (pp. 17), cl., with inscr. to George 

 Rennie, F.R.S. , 3s Qd [c. 1852] 



9537 HUGHES (Samuel, c.E., f.g.s.) Treatise on Gas- Works, and the Practice of Manufacturing 

 and Distributing Coal Gas, etc. etc., with 76 woodcuts: Tomlinson (Charles, F.R.S.) Rudiment- 

 ary Treatise on Warming and Ventilation, with 87 woodcuts {o. p.)— 2 vols. 12mo. in 1, hf. 

 morocco, 4s 1853-50 



9538 Treatise on Waterworks, with Description of the principal Geological Formations of 



England as Influencing Supplies of Water ; 2nd Edition, unth 31 woodcuts, 12mo. hf. bound, or, 

 cl. (o.p.), 3s 1872, '5, or, '82 



9539 HULL (Edward, F.R.S.) The Coal-Fields of Great Britain : their History, Structure and 

 Resources, with the Coal-Fields of our Indian and Colonial Empire, and of other Parts of the 

 World ; 4th Edition, revised, embodying the Royal Commission's Reports, with 2 plates, 13 maps 

 {the large folding one in pocket), and diagrams, 8vo. cl.. Is Qd (p. 16*) 1881 



The standard work on the subject. 



9540 The Geology of the Country around Cheltenham, with 4: plates (1 coloured), and 14 



ivoodcuts, roy. 8vo. sewn, 2s Geol. Survey, 1857 



9541 Observations on the Geology of the Nile Valley, etc. etc., 5 w-oodcuts, 8vo. (pp. 12), 



sewji, Is 6d [1896] 



9542 The Physical Geology and Geography of Ireland, with 2 coloured maps, and 26 



woodcuts, cr. Svo. cl., 3s 6d (p. 7*) 1878 



9543 Reminiscences of a Strenuous Life, with portrait, 8vo. cl., 3s (p. 4* 6rf nett) 1910 



Including much information of geological interest. 



9544 Treatise on the Building and Ornamental Stones of Gt. Britain and Foreign 



Countries, arranged according to their Geological Distribution and Mineral Character, 2 plates, 

 8vo. cL, 4s 6d (p. 12*) _ 1872 



9545 [HUME (James)] Traite: de la Trigonometrie pour resoudre tous Triangles Rectilignes efc 

 Spheriques, avec les Demonstrations des deux celebres Propositions du BARON DE Merchiston, 

 non encores demonstr^es ; with engraved arms of Robert Ker, first Earl of Ancrum, and numerous 

 diagrams, l2mo. boards, £1. 1* 1^^ 



Rare, and unknown to Poggendorfif, Brunet, Graesse, etc. It is interesting for containing propositions by John 

 Xapikr. , , 



9546 HUNAUS (Georg Christian Konrad) Die geometrischen Instrumente der gesammten 

 praktischen Geometrie ; with 290 ivoodcuts {including many folding plates), 8vo. hf. morocco gilt, 

 Ss (p. M. 16 sewn) Hannover, 1864 



