A TEXT BOOK OF THE PRINCIPLES OF PHYSICS BY ALFRED DANIELL, M.A., LL.B., D.Sc., F.R.S.E. OF THE INNER TEMPLE, BARRISTER-AT-LAW MEMBER OF THE FACULTY OF ADVOCATES IN SCOTLAND FORMERLY LECTURER ON PHYSICS IN THE SCHOOL OF MEDICINE, EDINBURGH I HAVE tried, in revising this volume, to maintain the characteristics of the book, to improve it where it seemed to need improvement, to correct any errors into which I had fallen, to fill up any gaps which seemed important, and to keep it up to date. I have considered every equation from the point of view of its Dimensions, and have had to modify some of the equations accordingly; I have tried to remove some difficulties from the student's path by the adoption of a uniform notation; and I have endeavoured to make it clear to him what the precise physical quantities are to which reference is being made in each particular case. Whatever may be my own shortcomings in respect of the execution of this revision, I hope that what I have been able to do may at any rate tend in the direction of accuracy and precision; and I also hope that the additional labour which I have bestowed upon this book may be accepted as an earnest acknowledgment of the uniform kindness with which the work has been received. 8 NEW COURT, LINCOLN'S INN, A. D. |