SCIENCE-ADVERTISEMENTS 



New Edition Rewritten and Enlarged of 



By DUQALD C. JACKSON, 



Professor of Electrical Engineering in the Massachusetts Institute of Technology 



and JOHN PRICE JACKSON, 



Dean of the School of Engineering in the Pennsylvania State College 



In this edition are maintained the well-known features of the earlier book in which were worked 

 out the characteristics of electric circuits, their self-induction, electrostatic capacity, reactance and 

 impedance, and the solutions of alternating current flow in electric circuits in series and parallel. 

 More attention is paid to the transient state in electric circuits than was the case in the original 

 edition. A considerable amount of related matter has been introduced in respect to vectors, complex 

 quantities, and Fourier's series which the authors believe will be useful to students and engineers. 

 The treatment of power and power factor has been given great attention, and a full chapter is now 

 allotted to the hysteresis and eddy current losses which are developed in the iron cores of electrical 

 machinery. More space and more complete treatment have been assigned to synchronous machines 

 and to asynchronous motors and generators. The treatment of the self-inductance and mutual induc- 

 tance of line circuits and skin effect in electric conductors which was found in the old book has been 

 extended, and it has been supplemented by a treatment of the electrostatic capacity of lines and the in- 

 fluences of distributed resistance, inductance and capacity. 



In all these features as well as in others the book has been brought up to the requirements of 

 present day teaching. The book covers the ground that is needed to give a fairly complete course in 

 the essential elements of alternating currents and their applications to machinery. It is longer 

 than will be needed in the courses in many of the engineering schools, but chapters may be selected so 

 as to meet the requirements of each school. 



The authors have endeavored to make the phraseology simple and to illustrate the applications 

 of the principles by examples drawn from the best practice in the art. As in the first edition, original 

 methods have been introduced in various instances to gain simple paths to results, every effort being 

 made to present a full physical conception of phenomena to the reader's mind. The mathematics 

 used are merely logical means for accomplishing the end, and are by no means to be considered from 

 any other standpoint. 



The value of this book as a text for juniors and seniors is greatly enhanced by the fact that 

 it will also be of constant use to them after their graduation. 



It is a volume which the practicing engineer will find indispensable as a reference book for use 

 at his desk — not as an ornament for his dusty bookshelves. 



" I Iiave looked this book over very carefully and do not hesitate to say that it is, in my opinion, 

 decidedly one of the best textbooks I have seen on Alternating Currents and Alternating Current 

 Machines. It covers in a rather mathematical way the problems which engineers meet with and the 

 subject matter is arranged in a way which makes the book most readable and instructive." — Professor 

 ERNST J. BERG, formerly of the University of Illinois, now of Union College. 



" I regard it as the most complete and satisfactory treatise upon the subject that has ever been 

 pubUshed."— Professor L. P. DICKINSON, Rhode Island State College. 



*' I am glad to see the old clearness of statement and logical arrangement of material agam." 



" It is a remarkable compendium of engineering theory and data, and cannot help serving both 

 students and practical engineers." 



"The substance and arrangement appeal to me as entirely satisfactory." 



That these typical comments represent the general impression regarding this book is evidenced 

 by the fact that in spite of the late date of publication, it has already been adopted for use as a text in 

 nearly a score of the most important engineering institutions. 



Cloth, ix + 968 pages. Illustrated. $5.50 net. 



PUBUSHED ^j-|g MACMILLAN COMPANY 



