PUBLISHED BY E. & F. N. SPON. 13 



Barlow s Tables of Squares, Cubes, Square Roofs, 



Cube Roots, Reciprocals of all Integer Numbers up to 1 0,000. Post 8vo, 

 cloth, 6s. 



A Practical Treatise on the Steam Engine, con- 

 taining Plans and Arrangements of Details for Fixed Steam Engines, 

 with Essays on the Principles involved in Design and Construction. By 

 ARTHUR RIGG, Engineer, Member of the Society of Engineers and of 

 the Royal Institution of Great Britain. Demy 410, copiously illustrated 

 with woodcuts and 96 plates, in one Volume, half-bound morocco, 2/. 2s. ; 

 or cheaper edition, cloth, 2$s. 



This work is not, in any sense, an elementary treatise, or history of the steam engine, but 

 is intended to describe examples of Fixed Steam Engines without entering into the wide 

 domain of locomotive or marine practice. To this end illustrations will be given of the most 

 recent arrangements of Horizontal, Vertical, Beam, Pumping, Winding, Portable, Semi- 

 portable, Corliss, Allen, Compound, and other similar Engines, by the most eminent Finns in 

 Great Britain and America. The laws relating to the action and precautions to be observed 

 in the construction of the various details, such as Cylinders, Pistons, Piston-rods, Connecting- 

 rods, Cross-heads, Motion-blocks, Eccentrics, Simple, Expansion, Balanced, and Equilibrium 

 Slide-valves, and Valve-gearing will be minutely dealt with. In this connection will be found 

 articles upon the Velocity of Reciprocating Parts and the Mode of Applying the Indicator, 

 Heat and Expansion of Steam Governors, and the like. It is the writer's desire to draw 

 illustrations from every possible source, and give only those rules that present practice deems 

 correct. 



A Practical Treatise on the Science of Land and 



Engineering Surveying, Levelling, Estimating Quantities, etc., with a 

 general description of the several Instruments required for Surveying, 

 Levelling, Plotting, etc. By H. S. MERRETT. Fourth edition, revised 

 by G. \V. USILL, Assoc. Mem. Inst. C.E. 41 plates, with illustrations 

 and tables, royal 8vo, cloth, 12s. 6d. 



PRINCIPAL CONTENTS : 



Part i. Introduction and the Principles of Geometry. Part 2. Land Surveying; com- 

 prising General Observations The Chain Offsets Surveying by the Chain only Surveying 

 Hilly Ground To Survey an Estate or Parish by the Chain only Surveying with the 

 Theodolite Mining and Town Surveying Railroad Surveying Mapping Division and 

 Laying out of Land Observations on Enclosures Plane Trigonometry. Part 3. Levelling 

 Simple and Compound Levelling The Level Book Parliamentary Plan and Section- 

 Levelling with a Theodolite Gradients Wooden Curves To Lay out a Railway Curve- 

 Setting out Widths. Part 4. Calculating Quantities generally for Estimates Cuttings and 

 Embankments Tunnels Brickwork Ironwork Timber Measuring. Part 5. Description 

 and Use of Instruments in Surveying and Plotting The Improved Dumpy Level Troughton's 

 Level The Prismatic Compass Proportional Compass Box Sextant Vernier Panta- 

 graph Merrett's Improved Quadrant Improved Computation Scale The Diagonal Scale 

 Straight Edge and Sector. Part 6. Logarithms of Numbers Logarithmic Sines and 

 Co-Sines, Tangents and Co-Tangents Natural Sines and Co-Sines Tables for Earthwork, 

 for Setting out Curves, and for various Calculations, etc., etc., etc. 



Health and Comfort in House Building^ or Ventila- 

 tion with Warm Air by Self -Acting Suction Poiver, with Review of the 

 mode of Calculating the Draught in Hot- Air Flues, and with some actual 

 Experiments. By J. DRYSDALE, M.D., and J. W. HAYWARD, M.D. 

 Second edition, with Supplement, with plates t demy 8vo, cloth, 7-r. 6</, 



