484 HENRY SOTHERAN & CO., 140, STRAND, W.C., AND 43, PICCADILLY, W. 



9639 HYMERS (Jolin, D.D., Rector of Brandesburton, F.R.S. ; founder of Hymers College, Hull) 

 The ELEMENTS of the THEORY of ASTRONOMY, 2nd Edition, revised, with 4 plates, 8vo. calf 

 antique, uncut, t. e. g., 4s Qd Cambridge, 1840 



9640 ANOTHER COPY, hf. calf (one joint cracked), 3s 



9641 TREATISE on ANALYTICAL GEOMETRY of THREE DIMENSIONS ; containing the Theory of 



Curve Surfaces, and of Curves of Double Curvature; 2nd Edition, with 6 plates : COLLECTION of 



EXAMPLES on the INTEGRAL CALCULUS, in which every Operation of each Example is completely 



effected ; by a MEMBER of the UNIVERSITY 2 vols. 8vo. in 1, calf gilt, 5s 6d ibidem, 1836-35 



THIRD [LAST] EDITION, altered and revised, with 6 plates, S^o. hf. cL, 4s ib., 1848 



9642 - - TREATISE on DIFFERENTIAL EQUATIONS, and on the CALCULUS of FINITE DIFFERENCES, 

 with plate, 8vo. boards, 3s ib., 1839 



9643 - SECOND EDITION, enlarged, with plate, 8vo. cl, 5s 1858 

 9644 TREATISE on [PLANE and SPHERICAL] TRIGONOMETRY, and on Trigonometrical Tables 



and Logarithms, with select Problems and their Solutions; 2nd Edition, enlarged, with Opiates 

 2 vols. 8vo. in 1, boards, 3s Qd Cambridge, 1841 



9645 - FOURTH EDITION, with 2 plates, 8vo. hf. calf gilt (nice copy), 5s 1858 



' Hymers was not a mere mathematician. He travelled largely on the Continent, and was well read in Classical 

 authors. His books exhibit much-acquaintance with the progress of mathematics on the Continent. He bequeathed all 

 his property to the Mayor and Corporation of Hull as a foundation for a Grainmar School 'to train intelligence in 

 whatever rank it may be found amongst the population of the town and port '. An obscurity in the wording of the will 

 rendered the bequest invalid, but his heir-at-law spontaneously offered the Corporation 40,000. to fulfil Hymers's 

 purpose. ' D. N. B. 



- v. GREGORY, Nos. 8665-8667, ante. 



9646 IBBETSON (John Holt) SPECIMENS in ECCENTRIC CIRCULAR TURNING ; with Practical 

 Instructions for producing Corresponding Pieces in the Art, 3rd Edition, with considerable 

 Additions, with 8 copperplates, and numerous full-page and other woodcuts, 8vo. cl. , uncut, Is Qd 



[c. 1830] 



9647 ANOTHER COPY, cl. (wanting first 2 copperplates), 3s Qd 



'The present edition gives a description of the identical slide-rest and chuck with which all the specimens I have 

 ever worked out in pure simple and compound eccentric turning were actually executed and engraved.' Intro. 



9648 IBBETSON (William John, F.R.A.S.) ELEMENTARY TREATISE on the MATHEMATICAL 

 THEORY of PERFECTLY ELASTIC SOLIDS, with short Account of Viscous FLUIDS, with 65 illus- 

 trations, 8vo. cl. (cover slightly damaged), 9s (p. 1. 1*) 1887 



9649 IGI (Raffaello) IMPIEGHI PERIODICI rendite AMMORTIMENTI, roy. 8vo. sewn, with author's 

 inscr., 2s 6d Sansevero, 1894 



9650 IMHOOFF (Jean Jaques, d'Arau) L'ART de TENIR les LIVRES en PARTIES DOUBLES, ou la 

 Science de faire Ecriture, de toutes les N^gociations qui se font, soit en Banque, soit en Mar- 

 chandises, 4to. hf. calf (rare), 12s 6d Vevey, chez I'auteur, 1786 



9651 IMISON (John ; printer) TREATISE on the MECHANICAL POWERS of the Lever, the Wheel and 

 Axle, the Pulley, the Screw, the Wedge, and the Inclined Plane, with useful Improvements in 

 Mill- Work, Bevel Geer, Friction, etc., 2nd Edition, luith 2 folding copperplates, 8vo. (pp. 37), sewn, 

 3s 1794 



9652 INDIA RUBBER, LECTURES on : the Official Account of the PROCEEDINGS of the CON- 

 FERENCE in Connexion with the International RUBBER and Allied Trades EXHIBITION, London, 

 Sept., 1908, edited by D. SPENCE, F.l.c, 3 plates and diagrams, roy. 8vo. cl. t 6s 6d (p. 10s Grfnett) 



[1909] 



9653 INDUSTRIE MINERALS, STATISTIQUE de 1', et des APPAREILS a VAPEUR, en FRANCE et 

 en ALGERIE, pour le Annee 1882. Resume des Travaux Statistiques de 1' Ad ministration des Mines 

 en 1883, avec Appendice, concernant la STATISTIQUE MINERALS INTERNATIONALE ; withmap and 

 diagrams, 4to. sewn, 5s Imprimerie Nationale, 1883 



9654 INGEGNERE (Angelo, sive Angiolo) CONTRA I'ALCHIMIA e gli ALCHIMISTI PALINODIA 

 dell' ARGONAUTICA, con la stessa Argonautica, dichiarata da copiose Postille del propio Autore ; 

 with arms on title, sm. 4to. sewn (rare), 15s Napoli, 1606 



This work was unknown to the author's biographer in Biographic Generate, who only quotes (imperfectly) the title on 

 the authority of Quadrio. 



9655 INGENIEURS (KONINKLIJK NEDERLANDSCH INSTITUUT van), WERKEN van 

 het; from the beginning in 1848 to 1908, viz., ALGEMEEN VERSLAG en NATULEN, 1848-99/1900 to 

 1894 in 47 vols. hf. calf, and the rest sewn ; VERHANDELINGEN, 1848-99/1908 to 1894 in 38 vols. hf. 

 calf, and the rest sewn; UITTREKSELS uit Tijdschriften 1848-67, 15 vols. hf. calf; REGISTER, 

 1847-94 ; REPERTOIRE des CARTES ; CATALOGUS der Boekerij, met Supplemen'ten ; with numerous 

 plates and other illustrations, 100 vols. 8vo. and 4to. hf. calf gilt, and numerous* parts, sewn (a few 

 parts and vols. wanting) ; FINE LIBRARY SET, 8. 8s 's Gravenhage, 1848-1908 



The foremost Dutch periodical publication on engineering, dealing more especially with canal and river work. The 

 earlier volumes are out of print and SCARCE. 



A COMPLETE SET OF THE JOURNAL TO DATE : 



9656 IRON and STEEL INSTITUTE, JOURNAL of the, from its beginning in 1871 to 1910, 

 78 v. : NAME INDEX, vv. 1-50 (1869-96), '98 : GENERAL INDEX, vv. 36-58 (1890-1900), 

 1902: SPECIAL VOLUME (The Iron and Steel Institute in America in 1890), n. d. : 

 SUPPLEMENT to v. LXV (Relations between the Effects of Stresses slowly applied, by 

 Pierre Breuil), '04 : CARNEGIE SCHOLARSHIP MEMOIRS, ed. by G. C. Lloyd, 2 v., '09-10: 

 LIBRARY CATALOGUE, with very numerous plates, portraits, etc. in all 11 vols. 8vo. hf. calf, 

 and 74 vols. cl. (FINE LIBRARY SET) ; VERY SCARCE, COMPLETE AS ABOVE, 24. 1871-1910 



Complete sets as the above are extremely difficult to find. 



