^4 CROSBY LOCK WOOD &- CO.' S CATALOGUE. 



MATHEMATICS, GEOMETRY, TABLES, etc. 



I*ractical ^lathotiatics, 



MATHEMATICS FOR PRACTICAL MEN. Being a Com- 

 mon-place Book of Pure and Mixed Mathematics. Designed chiefly for the 

 Use of Civil Engineers, Architects, and Surveyors. Part I. Pure Mathe- 

 matics : comprising Arithmetic, Algebra, Geometry, Mensuration, Trigono- 

 metry, Conic Sections, Properties of Curves. Part 11. Mi.xed Mathematics : 

 comprising Mechanics in general Statics, Dynamics, Hydrostatics, Hydro- 

 dynamics, Pneumatics, Mechanical Agents, Strength of Materials. With an 

 Appendix of copious Logarithmic and other Tables. By Olixthus Greg- 

 ory, LL.D., F.R.A.S., Enlarged by Henry Law, C.E. 4th Edition, care- 

 fully Revised by J. R. Young, formerly Professor of Mathematics, Belfast 

 College. With 13 Plates, bvo, £1 is, cloth. 



" The engineer or architect will here find ready to liis hand rules for solving nearly every 

 in, itheniatical difficulty that may arise in his practice. The rules are in all cases explained by 

 means of examples, in which every step of the process is clearly worked out." — Ruilder. 



"One of the most serviceable books for practical mechanics. . . . Professor Young h^s 

 modernised the notation throug-hout. introduced a few paragraphs here and there, and corrected 

 the numerous typographical errors which had escaped the eyes of the former Editor. The book 

 is now as complete as it is possible to make it. It is an instructive book for the student, and a 

 Text-book for him who, having once mastered the subjects it treats of, needs occasionally to 

 refresh his memory upon them." — Buildinsr News. 



"As a standard work on mathematics it has not been excelled." — Artisan. 



3Ietrical Units and Si/stems^ etc, 



MODERN METROLOGY : A Manual of the Metrical Units 

 and Systems of the Present Century. With an Appendix containing a proposed 

 English System. By Lewis D'A. Jackson, A.M. Inst. C.E., Author of " Aid 

 to Survey Practice," &c. Large crown 8vo, 12s. 6rf. cloth. 



" The author has brought together much valuable and interesting information. . . . T)ie 

 n.ain object of the work appears to be the discussion of a remedy for the evils ot the complex 

 .systems of weights and measures which are unfortunately still in use in this country. To provide 

 such a remedy is a serious task, and one well worthj' of the attention of a great statesman such as 

 Mr. Gladstone, to whom the work is inscribed. . . . AV'e cannot but reconnnend the work to the 

 consideration of all interested in the practical reform of our weights and measures." — Nature. 



"For the large collection of measures brought toeether, the author supplies the Krencli 

 scientific equivalents, in terms of the metrical system. He also gives throughout a double set of 

 linglish equivalents, the first of which he calls the 'Commercial Measures,' and the second the 

 • Scientific \'alue.' . . . There is no doubt as to the great amount of laVjour that must have been 

 devoted to the calculation ; and the juxtaposition of the two values affords an easy means of check- 

 ing the work by comparison." — Atlienceiun. 



"For exhaustive tables of equivalent weights and measures of all sorts, and for clear demonstra- 

 tions of the effects of the various systems that have been proposed or adopted, Mr. Jackson'i 

 treatise is without a rival." — Acadeyny. 



The ISIetvic System, 



A SERIES OF METRIC TABLES, in which the British Stand- 

 ard Measures and Weights arc compared u.nth those of the Metric System at present 

 ■in Use on the Continent. By C. H. Dowling, C.E. Second Edition, Revised 

 and Enlarged. 8vo, los. 6d. strongly bound. 



"Their accuracy has been certified by Professor Airj-, the Astronomer-Royal."— A'/a'A/cr. 

 "Mr. Dowlings Tables, which are well put together, come just in time as a ready-reckoner for 

 tlic conversion of one system into the other." — Atlunajnn 



Geometry for the Architect, Engineer, etc, 



PRACTICAL GEOMETRY, for the Architect, Engineer and 

 Mechanic. Giving Rules for the Delineation and Application of various 

 Geometrical Lines, Figures and Curves. By E. VV. Tarn, M.A., Architect, 

 Author of "The Science of Building," &c. Second Edition. With Appen- 

 dices on Diagrams of Strains and Isometrical Projection. With 172 Illus- 

 trations, demy 8vo, 9s. cloth. 



" No book with the same objects in view has ever been published in wliich the clearness of the 

 rules laid down and the illustrative diagrams have been so satisfactory." — Scots>?!a?i. 



"This is a manual for the practical man, whether architect, engineer, or mechanic. . . . The 

 object of the author being to avoid all abstruse formulae or complicated methods, and to enable 

 ))ersons with but a moderate knowledge of geometry to work out the problems required,"— /:;/^>/jVA 

 Mechanic. 



