PUBLISHED BY K & R N. SPON. 13 



A Practical Treatise on the Science of Land and 



Engineering Surveying, Levelling^ Estimating Quantities, etc., -vvitli a 

 general description of the several Instruments required for Surveying, 

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

 by G. W. UsiLL, Assoc. Mem. Inst. C.E. 41 platesy with illustratians 

 and tables, I'oyal 8vo, cloth, I2x. 6d, 



Principal Contents t 



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

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

 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 — Parhamentary 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-Smes, 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 hnds. By ROBERT Grimshaw. 

 Wzt/i 220 illustrations f 4to, cloth, 12s. 6d, 



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 ilhistratw7is, cloth, 9^. 



A Guide for the Electric Testing of Telegraph Cables. 



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

 second edition, crown 8vo, cloth, 4^. 6d. 



Laying and Repairing Electric Telegraph Cables. By 



Capt V, HOSKIOER, Royal Danish Engineers. Crown 8vo; cloth, 



The Assayers Manual: an Abridged Treatise on 



the Dociraastic Examination of Ores and Furnace and other Artificial 

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

 illustrations, 8vo, cloth, 12^*. 6d, 



The Steam Engine considered as a LTeat 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. 

 8vo, cloth, 1 2 J. 6d. 



Electricity: its Theory, Sources, and Applications. 



By J. T. Sprague, M.S.T.E. Second edition, revised and enlarged, with 

 munerous illustrations, crown 8vo, cloth, i^s. 



