Modern Marine Engineering applied to Paddle and Screw Propulsion; consisting of _36 plates, 259 wood engravings_, and 403 pages of descriptive matter, the whole being an exposition of the present practice of the following firms: Messrs. J. Penn and Sons; Maudslay, Sons, and Field; James Watt and Co.; J. and G. Rennie; R. Napier and Sons; J. and W. Dudgeon; Ravenhill and Hodgson; Humphreys and Tenant; Mr. J. F. Spencer; and Messrs. Forester and Co. By N. P. Burgh, Engineer, 4to, cloth £2 5 0 =Steam Engine.= Modern Compound Engines, being a Supplement to Modern Marine Engineering, by N. P. Burgh, Mem. Inst. Mech. Eng., _numerous large plates of working drawings_, 4to, cloth 18 0 The following Firms have contributed Working Drawings of their best and most modern examples of Engines fitted in the Royal and Mercantile Navies: Messrs. Maudslay, Rennie, Watt, Dudgeon, Humphreys, Ravenhill, Jackson, Perkins, Napier, Elder, Laird, Day, Allibon. =Steam Engine.= Practical Treatise on the Condensation of Steam: contained in 262 pages of letterpress, _and illustrated with 212 engravings_, by N. P. Burgh, Engineer, super-royal 8vo, cloth £1 5 0 =Steam Engine.= A Pocket-Book of Practical Rules for the Proportions of Modern Engines and Boilers for Land and Marine purposes, by N. P. Burgh, fifth edition, revised, with Appendix, royal 32mo, roan 4 6 Details of High-Pressure Engine, Beam Engine, Condensing, Marine Screw Engines, Oscillating Engines, Valves, etc., Land and Marine Boilers, Proportions of Engines produced by the rules, Proportions of Boilers, etc. =Steep Gradients on Railways.= A Treatise on the Improved Method for overcoming Steep Gradients on Railways, whereby an ordinary locomotive capable of hauling a given load up a gradient 1 in 80, can take the same up 1 in 8, by Henry Handyside, 8vo, sewed 1 0 =Strength of Beams.= On the Strength of Beams, Columns, and Arches, considered with a view to deriving methods of ascertaining the practical strength of any given section of Beam, Column, or Arch, in Cast-iron, Wrought-iron, or Steel, by B. Baker, _numerous cuts_, crown 8vo, cloth 9 0 =Strength of Beams.= New Formulas for the loads and Deflections of Solid Beams and Girders, by William Donaldson, M.A., Assoc. Inst. C.E., 8vo, cloth 4 6 =Sugar.=