Pyrology, or Fire Chemistry; a Science interesting to the general Philosopher, and an art of infinite importance to the Chemist, Mineralogist, Metallurgist, Geologist, Agriculturalist, Engineer (Mining, Civil, and Military), etc., etc., by William Alexander Ross, lately a Major in the Royal Artillery, _with plates and woodcuts_, crown 4to, cloth £1 16 0 "A work which we have no hesitation in pronouncing original and invaluable. The author is not a chemist trained in the orthodox school outside which there is no salvation: for cooked results and unproved theories he shows very little respect. We can strongly recommend this book to ANALYSTS, ASSAYERS, MINERALOGISTS, and to all persons interested in MINING AND METALLURGY."--_Chemical News_, August 6th, 1875. =Railway Engineering.= Manual of Railway Engineering, for the Field and the Office, by Charles P. Cotton, C.E., second edition, revised and enlarged, post 8vo, cloth 7 6 =Rennie, Sir John.= The Autobiography of Sir John Rennie, Past-President of the Institution of Civil Engineers, F.R.S., etc., etc., edited by his son, C. G. C. Rennie, _with portrait_, 8vo, cloth 12 6 =Reservoirs.= On the Construction of Catch-water Reservoirs in Mountain Districts for the supply of Towns, or for other purposes, by C. H. Beloe, Author of 'The Handbook of the Liverpool Waterworks,' _plates_, 8vo, cloth 5 0 =Retaining Walls.= Surcharged and different Forms of Retaining Walls, by J. S. Tate, _cuts_, 8vo, sewed 2 0 =Ropemaking.= A Treatise on Ropemaking as practised in public and private Rope-yards, with a description of the manufacture, rules, tables of weights, etc., adapted to the Trade, Shipping, Mining, Railways, Builders, etc., by R. Chapman, formerly foreman to Messrs. Huddart and Co., Limehouse, and late Master Ropemaker to H.M. Dockyard, Deptford, second edition, 12mo, cloth 3 0 =Sanitary Engineering.= Proceedings of the Association of Municipal and Sanitary Engineers and Surveyors, Vol. I., 1873-4, edited by Lewis Angell, Mem. Inst. C.E., F.R.I.B.A., etc., etc., 8vo, cloth 10 6 Ditto, Vol. II. 7 6 =Sanitary Engineering.= A Series of Lectures given before the School of Engineering, Chatham. Division I. Air. Division II. Water. Division III. The Dwelling. Division IV. The Town and Village. Division V. The Disposal of Sewage. Copiously illustrated. By J. Bailey Denton, C.E., F.G.S., Honorary Member of the Agricultural Societies of Norway, Sweden, and Hanover, and Author of the 'Farm Homesteads of England,' 'Storage of Water,' etc., etc., royal 8vo, cloth 21 0 =Sanitary Works Abroad.=