AND MAGNETIC CHART OF THE BRITISH ISLANDS, SHOWING THE LINES OF EQUAL MAGNETIC DECLINATION IN ELECTRICITY & MAGNETISM BY THOM SILVANUS P. THOMPSON, D.Sc., B.A., F.R.S., F.R.A.S. PRINCIPAL OF AND PROFESSOR OF PHYSICS IN THE CITY AND GUILDS OF LATE PROFESSOR OF EXPERIMENTAL PHYSICS IN UNIVERSITY COLLEGE, BRISTOL NEW EDITION, REVISED THROUGHOUT New York THE MACMILLAN COMPANY LONDON: MACMILLAN & CO., LTD. 1898 All rights reserved |