12 Mr. Edward Arnold's List of New Books 



A TEXT-BOOK OF ELECTRICAL 

 ENGINEERING. 



By Dr. ADOLF THOMALEN. 



Translated by GEORGE W. O. HOWE, M.Sc, Whit. Sch., 



A.M.I.E.E., 



Lecturer in Electrical Engineering at the Central Technical College, South 



1 Kensington. 



Royal 8vo. With 454 Illustvations. 15s. net. 



This translation of the * Kurze Lehrbuch der Electrotechnik ' 

 is intended to fill the gap which appears to exist between the 

 elementary text-books and the specialized works on various branches 

 of electrical engineering. It includes additional matter which is to 

 be introduced into the third German edition, now in preparation. 

 The book is concerned almost exclusively with principles, and does 

 not enter into details of the practical construction of apparatus and 

 machines, aiming rather at laying a thorough foundation which shall 

 make the study of works on the design of machinery more profitable. 



HYDRAULICS. 



By F. C. LEA, B.Sc, A.M.Inst.C.E., 



Senior Whitworth Scholar, A.R.C.S. ; Lecturer in Applied Mechanics and Engineering 

 Design, City and Guilds of London Central Technical College, London. 



Demy Svo. i8s. net. 



This book is intended to supply the want felt by students and 

 teachers alike for a text-book of Hydraulics to practically cover the 

 syllabuses of London and other Universities, and of the Institution 

 of Civil Engineers. With this end in view, and to make the work 

 as self-contained as possible, the earlier chapters are devoted to the 

 consideration of fluids at rest and the stability of floating bodies. 

 For the chapters on the flow of water, in pipes and channels; and 

 through orifices and over weirs, the latest experimental work has 

 been carefully consulted, and it is believed the resume given of that 

 work will not only be of use to students and teachers, but also to 

 practical engineers. The construction of modern hydraulic machines 

 is shown by a number of examples. A chapter on the resistance of 

 ships' models is inserted, and the method of determining the still- 

 water resistance of ships from that of the model is given. The work 

 is completely illustrated, and the methods of using the formulae 

 given are shown by worked Arithmetical Examples. 



