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MAGNETIC CHART OF THE BRITISH ISLANDS,

SHOWING THE LINES OF EQUAL MAGNETIC DECLINATION AND THOSE OF EQUAL MAGNETIC DIP.

IN

ELECTRICITY & MAGNETISM

BY

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
LONDON TECHNICAL COLLEGE, FINSBURY;

LATE PROFESSOR OF EXPERIMENTAL PHYSICS IN

UNIVERSITY COLLEGE, BRISTOL

NEW EDITION, REVISED THROUGHOUT
WITH ADDITIONS

New York

THE MACMILLAN COMPANY

LONDON: MACMILLAN & CO., LTD.

1906

All rights reserved

T4?

COPYRIGHT, 1894,

BY MACMILLAN AND CO.

Set up and electrotyped December, 1894.

Reprinted

June, 1895; March, December, 1896; October, 1897; August.
1898; August, 1899; May, 1900; January, September, 1901;
March, December, 1902; October, 1903; April, 1904; April,
December, 1905: July, 1906.

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that light-waves are ical consequences of or misunderstood. that in an electric

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le within the so-called i sheath, and not the il medium which conof the Atlantic to the l incredible to those of thought. But it is nce of the views which ove Maxwell and his

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T43

COPYRIGHT, 1894,

BY MACMILLAN AND CO.

Set up and electrotyped December, 1894.

Reprinted

June, 1895; March, December, 1896; October, 1897: August. 1898; August, 1899; May, 1900; January, September, 1901; March, December, 1902; October, 1903; April, 1904; April, December, 1905: July, 1906.

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