RITCHIE, R. Additional report as to who was architect of Heriot's hospital. Tract. 8vo. vol. 165. Edinburgh, 1856 RITTINGER, P. Centrifugal-ventilatoren und centrifugal-pumpen. Theorie und bau aller arten derselben, mit berücksichtigung der resultate zahlreicher selbstabgeführter versuche. 8vo. Plates. Wien, 1858 Theoretisch-praktische darstellung der anfangsgründe der freien perspektivzeichnung zum selbstunterrichte für maschinenzeichner, architecten, &c. 8vo. Plates. Wien, 1839 RIVER, Arno. Vide GIORGINI. Blackwater. Vide RENNIE. Clyde. Vide DE ROCHEMONT, SCOTT, and WALKER. Crouch. Vide RENNIE. Danube. Vide BLAIR, and PASETTI. Douro. Vide CRAWFORD. Escaut Oriental. Vide CONRAD. Godavery. Vide PARLIAMENTARY PAPERS. Hooghly. Vide BROOKS. Lee. Vide BEARDMORE, PARLIAMENTARY PAPERS, RENDEL, and RENNIE. Mississippi. Vide ELLET, and HEWSON. Thames. Tiber. Vide DE CABANES. Vide ANONYMOUS, BOYDELL, and BRINDLEY. Trent. Vide ANONYMOUS. Tyne. Vide PARLIAMENTARY PAPERS, and URE. Witham. Vide WHEELER. drainage. Vide FROW, HAWKSHAW, and WELSH. RIVERS, Great Britain. Vide SKRINE. means of rendering navigable. Vide ANONYMOUS. rules for calculating the velocity and discharge. Vide LALL. K RIVERS, silting-up of the mouths of. Vide MERCADIER. and TORRENTS. Vide FRISI. ROAD, Peermade ghaut. Vide JOHNSTON. MAINTENANCE. Vide PAGET. ROADMAKING. Vide BURGOYNE, and POLONCEAU. ROADS, India. Vide LOGIN. public. Vide HOMER, and WICKENS. ROBBERDS, J. W., Jun. Geological and historical observations on the eastern valleys of Norfolk. 8vo. Map. Norwich, 1826 ROBERTS, H. Home reform; or, what the working classes may do to improve their dwellings. Tract. 8vo. vol. 155. Cut. Lond. 1852 The dwellings of the labouring classes, their arrangement and construction; with the essentials of a healthy dwelling. Illustrated by references to the model houses of the society for improving the condition of the labouring classes, of His Royal Highness the late Prince Consort, of the Royal Windsor society, and other recent buildings. With plans and elevations of dwellings adapted to towns and to rural districts. 4th edition, revised and enlarged. 8vo. Plates and cuts. Lond. 1867 Captain J. Harbour of refuge and docks at Newhaven, as introduced this session in Parliament. Tract. Folio. vol. 10. Plan. No place, 1866 J. P. Irrigation in Spain: being a paper compiled from information collected during a residence of several years in that country. Tract. 8vo. vol. 161. Lond. 1867 R. Description of certain improvements in vessels; partly applicable to other purposes. Tract. 4to. vol. 52. Plates. Manchester, 1853 ROBERTSON, G. Recent marine, hydraulic, and sanitary engineering in Scotland: an address to the Royal Scottish Society of Arts. Tract. 8vo. vol. 161. Edinburgh, 1867 The science education movement: an address to the Royal Scottish Society of Arts. Tract. 8vo. vol. 167. Edinburgh, 1868 Tide signals as well as storm signals: a note on the recent high-tide on the east coast of Britain. Tract. 8vo. vol. 168. Plate. Edinburgh, 1868 J. The elements of astronomy, &c. To which is annexed a treatise of projection in general. The whole translated from the French of M. De la Caille. 8vo. Plates. Lond. 1750 Paris, 1856 ROBIN, C. Histoire illustrée de l'exposition universelle par catégories d'industries avec notices sur les exposants. 8vo. ROBINS, B. New principles of gunnery: containing the determination of the force of gunpowder, and an investigation of the difference in the resisting power of the air to swift and slow motions; with several other tracts on the improvement of practical gunnery. A new edition, by Charles Hutton. 8vo. Plates and cuts. Lond. 1805 ROBINSON, J. An easy mode of ascertaining the capabilities of soil, tests for the purity of artificial manures, mode of preserving the fertilising contents of a dungheap from escape; with other information of great importance to the farmer, to the purchaser of land, and to the emigrant. New edition. Tract. 8vo. vol. 175. Lond. 1863 T. R., and GRUBB, J. Description of the great Melbourne telescope. No place, 1869 Tract. 4to. vol. 62. Plates. (Excerpt "Phil. Trans.") removal of, from the port of Croisic. Vide DE LA GOURNERIE. ROCKS, testimony of the. Vide MILLER. treatise on. Vide PINKERTON. ROCOUR, G. Revues étrangères. The iron trade review. du nord de l'Angleterre, tenu à Newcastle le 29 Septembre, 1868. Paris, 1831 Meeting trimestriel Tract. 8vo. vol. 174. Liége, no date ROCQUANCOURT, J. Cours élémentaire d'art et d'histoire militaires, à l'usage des élèves de l'Ecole Royale spéciale militaire. 2e édition. 2 vols. 8vo. RODMAN, Capt. T. J., U.S.A. Reports of experiments on the properties of metals for cannon, and the qualities of cannon-powder; with an account of the fabrication and trial of a 15-inch gun. 4to. Plates. Boston, Mass., 1861 ROBLING, J. A. Argument before the U. S. commissioners on the east riverbridge, in answer to certain objections. Tract. 8vo. vol. 186. Long and short span railway-bridges. Folio. Plates. New York, 1869 Report on the condition of the Niagara railway suspension-bridge. Tract. 8vo. vol. 186. Trenton, N.J., 1860 Brooklyn, 1869 Report to the president and directors of the New York bridge company on the proposed east river-bridge. Tract. 8vo. vol. 186. Brooklyn, 1867 ROGERS, S. B. An elementary treatise on iron metallurgy, up to the manufacture of puddled bars, built upon the atomic system of philosophy, the elements operated upon being estimated according to Dr. Wollaston's hydrogen scale of equivalents; comprising suggestions relative to important improvements in the manufacture of iron and steel, and the conduct of extensive ironworks; with analytical tables of iron-making materials. 8vo. Plates. Lond. 1858 ROLLET, A. Mémoire sur la meunerie, la boulangerie, et la conservation des grains et des farines, contenant une description complète des procédés, machines et appareils appliqués jusqu'a nos jours, et plus particulièrement dans les diverses usines de France, d'Angleterre, d'Irlande, de Belgique, de Hollande, etc., précédé de considerations sur le commerce des blés en Europe. 4to. Folio atlas of plates. Paris, 1846 ROLLING-STOCK, flexible. Vide GROVER. Indian. Vide HEPPEL. ROLL-TURNING, iron. Vide TUNNER. ROMANO, A. Esposizione di quattro nuove scoperte. Il moto perpetuo o continuato per quattro leggi e per due sistemi diversi. Sviluppo della circonferenza al diametro mecannicamente d'una data mota. Attrazione di forza dei corpi pendenti sui piani inclinati. L'acqua ruotante su d'un asse ovale constituita in un molino continuato. La luce perpetua appogiata sul moto continuato. Nuovo sistema di equilibrio sulle bilancie. La quadratura del circolo dimostrato a rigore di leggi naturali. vol. 196. Plates. Tract. 8vo. Como, 1870 ROMBERG, J. A. Conversations lexicon für bildende kunst. Vol. 1 and 2, rangs de rames. RONEY, Sir C. P. Rambles on railways. 8vo. Appendices, plates, and maps. Lond. 1868 The Alps and the Eastern mails. Tract. 8vo. vol. 157. Map. Lond. 1867 ROOFS, construction of. Vide ANONYMOUS, and UNWIN. iron. Vide CAMPIN, DEMPSEY, and UNWIN. ROSCOE, H. E. Spectrum-analysis: six lectures, delivered, in 1868, before the Society of Apothecaries of London. 8vo. Plates and cuts. Vide also BUNSEN. Lond. 1869 ROSENKART, S. C. Situation des meeresufers zwischen dem Lazareth der batterie Lengo und Barcola. Map folding in 4to. Tract. 4to. vol. 60. No place or date ROSS, Captain Sir J. On communication with India, in large steamships, by the cape of Good Hope printed by order of the India steamship company, and addressed to the British public. Tract. 8vo. vol. 153. Map and plate. Lond. 1838 O. C. D. Spain and the war with Morocco. Tract. 8vo. vol. 178. ROTATION, uniform. Vide SIEMENS. Lond. 1860 ROUEN CHAMBER OF COMMERCE. Vide LE MIRE. ROULEZ, J. E. G. Mémoire sur les campagnes de César dans la Belgique, et particulièrement sur la position du camp de Q. Ciceron chez les Nerviens, suivi d'une notice historique sur les Nerviens et de recherches sur Samarobriva, par P. J. B. Avec un plan du camp de Cicéron et cinq cartes géographiques. Tract. 4to. vol. 57. Plates. Louvain, 1833 Vide DEMPSEY. ROUTE book. ROUTH, E. J. An elementary treatise on the dynamics of a system of rigid bodies; with numerous examples. 8vo. Cuts. Cambridge and Lond. 1860 ROUVIÈRE, L. Consideraciones sobre la exposicion universal de 1867. Tract. 8vo. Barcelona, 1868 ROUX, L. Armes et poudre de chasse. 12mo. ROWE, R. R. Report upon the sewage-works of some towns in England: presented to the Cambridge improvement commissioners. Tract. 8vo. vol. 152. ROYAL ACADEMY. Vide REPORTS. Vide MARTYN. Cambridge, 1869 OF SCIENCES, PARIS. ENGINEER officer. Vide WEBBER. ITALIAN COMMISSION, Dublin international exhibition, 1865. Kingdom of Italy. Official catalogue, illustrated, and engravings. Tract. 8vo. vol. 155. Plates and cuts. Turin, 1865 NATIONAL LIFEBOAT INSTITUTION. Annual report, 1869. Plate and cuts. Lond. 1869 NAVY, Engineer's guide to the. Vide A PRACTICAL ENGINEER. SCOTTISH SOCIETY OF ARTS. Conference on technical education, held at Edinburgh, Friday, 20th March, 1868. 8vo. Edinburgh, 1868 SOCIETY. Vide DAVY. RUDDER, balanced. Vide RANKINE. RÜHLMANN, Dr. M. Allgemeine maschinenlehre. Ein leitfaden für vorträge, sowie zum selbstudium des heutigen maschinenwesens, mit besonderer berüchsichtigung seiner entwicklung. Für angehende techniker, cameralisten, landwirthe und gebildete jeden standes. 8vo. Cuts. Braunschweig, 1865 Lond. 1867 RUMBALL, A. Report on proposed public works in southern Russia; Taganrog, Vide STEPHENS. RUNIC MONUMENTS of Scandinavia and England. (Excerpt" Papers of the Greenock Philosophical Society.") Systematic technical education for the English people. 8vo. No place, 1867 Plates. Lond. no date Lond. 1869 1 RUTHVEN, M. W. Patent hydraulic propeller, rudder, and steering apparatus; with a description of the hydraulic vessel "Nautilus," trial-trips, &c. Tract. 8vo. vol. 158. Cuts. Lond. 1866 RYDE, E. Ryde's hydraulic tables, giving at sight the discharge and velocity of water and sewage flowing through pipes; practically adapted to the requirements of the civil engineer, architect, surveyor, contractor, and builder. 8vo. Plates. Lond, no date RYDER, A. P., Capt. R.N. Heads of inquiry into the state and condition of lighthouses; with explanatory notes, for the use of authorities having charge of lighthouses, and for the information of lighthouse-keepers, &c. Tract. Folio. vol. 10. Plate. Lond. 1864 S. SABINE, R. On pneumatic transmission through tunnels and pipes. Tract. 4to. vol. 63. Lond. 1870 Report on telegraph apparatus and processes. Paris exhibition. Tract. 8vo. vol. 166. Cuts. No place or date The electric telegraph. 8vo. Cuts. Lond. 1862 netism. Tract. 8vo. vol. 182. Cuts. (Being the Reade Lecture, delivered in the Senate House of the University of Cambridge, in May, 1862.) SÄCHSISCHEN INGENIEUR-VEREINS. Mittheilungen. Herausgegeben von dem verwaltungsrathe des vereins. 3 vols. 8vo. Plates. Protokolle. 8vo. Plates and cuts. Dresden, 1858-60 Dresden, 1868–70 SADLER, F. W. R. The method of raising sunken vessels (as usually adopted at Her Majesty's dockyards), explained, with general directions for conducting such operations; and a detail of the proceedings at the raising of Her Majesty's schooner Pincher. Tract. 4to. vol. 64. Plates. Portsea, 1838 ST. LEONARDS, Lord. A handy-book on property law, in a series of letters. 2nd edition. 12mo. SALMON-FISHERIES. Vide PARLIAMENTARY PAPERS. SALT-MARSHES, Tuscan, improvement of the. Vide TARTINI. Edinburgh, 1858 SAMUDA, J. D'A. Speeches in the House of Commons, during the sessions of 1866-7-8, on the navy fortifications and postal services. Tract. 8vo. vol. 168. Lond. no date an Lond. 1859 SAMUEL, Brothers. Wool and woollen manufactures of Great Britain: historical sketch of rise, progress, and present position. 8vo. SAMUELSON, B. Vide PARLIAMENTARY PAPERS-EDUCATION. Lond. 1864-69 J., and CROOKES, W. The Quarterly Journal of Science. Vols. 1-6. 8vo. Plates, maps, and cuts. SAN BERTOLO, N.C. Parts 1 and 2. 8vo. 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