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



A Practical Treatise on the Science of Land and 



Enginetring Surveying, Levelling, Estimating Quantiliesi etc., with a 

 general description of the several Instraments required for Surveying, 

 Levelling, Plotting, etc. By H. S. Merrett. Third edition, 41 platei 

 with illustrations and tables, royal 8vo, cloth, I2j-. dd. 



Principal Contents : 



_ Fart I. Introduction and the Principles of Geometry. Fart 2. Land Surveying ; com- 



? rising Genera! Observations — ^THe Chain — Offsets Surveying by the Chain only — Surveying 

 rilly Ground — ^To Survey an Estate or Farish by the Chain only — Surveying with the 

 Theodolite — Mining and Town Surveying — Railroad Surveying — Mapping — Division and 

 Laying out of Land — Observations on Enclosyres — Flane Trigonometry. Part 3. Levelling — 

 Simple and Compound Levelling — ^The Level Book — Parliamentary Flan and Section — 1 

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

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

 Embankments — Tunnels — Brickwork — Ironwork — ^Timber Measuring. Fart 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 — Fanta- 

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

 Straight Edge and Sector. Fart 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. 



Saws: the History, Development, Action, Classifica- 

 tion, and Comparison of Saws of all kinds. By Robert Grimshaw. 

 With 220 illustrations, 410, cloth, 12^. dd. 



A Supplement to the above ; containing additional 



practical matter, more especially relating to the forms of Saw Teeth for 

 special material and conditions, and to the behaviour of Saws under 

 particular conditions. With 120 illustrations, cloth, gj. 



A Guide for the Electric Testing of Telegraph Cables. 



By Capt. V. Hoskicer, Royal Danish Engineers. With illustrations, 

 second edition, crown 8vo, cloth, 4J. dd. 



Laying and Repairing Electric Telegraph Cables. By 



Capt. V. Hoskicer, Royal Danish Engineers. Crown Svo, cloth, 

 3J. bd. 



A. Pocket-Book of Practical Rules for the Proportions 



oj Modern Engines and Boilers for Land and Marine purposes. By N. P. 

 Burgh. Seventh edition, royal 32mo, roan, 4f. dd. 



The Assayers Manual: an Abridged Treatise on 



the Docimaslic Examination of Ores and Furnace and other Artificial 

 Products. By -Bruno Kerl. . Translated by W. T. Brannt. With 65 

 illustratiotu, Svo, cloth, 12s. 6d. ^ 



The Steam Engine considered as a Heat Engine : a 



Treatise on the Theory of the Steam Engine, illustrated by Diagrams, 

 Tables, and Examples from' Practice. By Jas. H. Cotterill, M.A., 

 F.R.S., Professor of Applied Mechanics in the Royal Naval College. 

 Svo, cloth, 12.S. 6d. 



