12 WORKS PUBLISHED BY LOCKWOOD & CO. 



Field- Book for Engineers. 



THE ENGINEER'S, MINING SURVEYOR'S, and CON- 

 TRACTOR'S FIELD-BOOK. By W. DAVIS HASKOLL, Civil 

 Engineer. Third Edition, much enlarged, consisting of a Series 

 of Tables, with Rules, Explanations of Systems, and Use of Theo- 

 dolite for Traverse Surveying and Plotting the Work with minute 

 accuracy by means of Straight Edge and Set Square only ; Levelling 

 with the Theodolite, Casting out and Reducing Levels to Datum, 

 and Plotting Sections in the ordinary manner; Setting out Curves 

 with the Theodolite by Tangential Angles and Multiples with Right 

 and Left-hand Readings of the Instrument; Setting out Curves 

 without Theodolite on the System of Tangential Angles by Sets of 

 Tangents and Offsets ; and Earthwork Tables to 80 feet deep, cal- 

 culated for every 6 inches in depth. With numerous wood-cuts, 

 I2mo, price I2s. cloth. 



"A very useful work for the practical engineer and surveyor. Every person 

 engaged in engineering field operations will estimate the importance of such a work 

 and the amount of valuable time which will be saved by reference to a set of reliable 

 tables prepared with the accuracy and fulness of those given in this volume." Rail- 

 way Ne~MS. 



" The book is very handy, and the author might have added that the separate tables 

 of sines and tangents to every minute will make it useful for many other purposes, the 

 genuine traverse tables existing all the same." Atketitzum. 



" The work forms a handsome pocket volume, and cannot fail, from its portability 

 and utility, to be extensively patronised by the engineering profession.'' Mining 

 Journal. 



"We strongly recommend this second edition of Mr. HaskolPs ' Field Book' to all 

 classes of surveyors." Colliery Guardian. 



Earthwork, Measurement and Calculation of. 



A MANUAL on EARTHWORK. By ALEX. J. S. GRAHAM, 

 C.E., Resident Engineer, Forest of Dean Central Railway. With 

 numerous Diagrams. i8mo, 2s. 6d. cloth. 



" As a really handy book for reference, we know of no work equal to it ; and the 

 railway engineers and others employed in the measurement and calculation of earth- 

 work will find a great amount of practical information very admirably arranged, and 

 available for general or rough estimates, as well as for the more exact calculations 

 required in the engineers' contractor's offices. " A rtizan. 



Harbours. 



THE DESIGN and CONSTRUCTION of HARBOURS. By 

 THOMAS STEVENSON, F.R.S.E., M.I.C.E. Reprinted and en- 

 larged from the Article "Harbours," in the Eighth Edition of " The 

 Encyclopaedia Britannica." With 10 Plates and numerous Cuts. 

 8vo, IO.T. 6d. cloth. 



Mathematical and Drawing Instruments. 



A TREATISE ON THE PRINCIPAL MATHEMATICAL 

 AND DRAWING INSTRUMENTS employed by the Engineer, 

 Architect, and Surveyor. By FREDERICK W. SIMMS, M. Inst. 

 C.E., Author of " Practical Tunnelling," &c. Third Edition, with 

 numerous Cuts. I2mo, price 3-r. 6d. cloth. 



