James Clerk Maxwell (1831–1879) The Great Works by Maxwell himself.

1)  On Faraday's Lines of Force" (1856).

http://faculty.poly.edu/~jbain/histlight/lectures/10.Maxwell.pdf

http://www.conspiracyoflight.com/Maxwell/MaxwellOnFaradaysLines.pdf 75p

2) On Physical Lines of Force (1861) 48 pages
http://www.tuks.nl/pdf/Reference_Material/Maxwell_-_On_Physical_Lines_of_Force_1861.pdf

Here is links to the two volumes of Maxwell's original work!

3)

A treatise on electricity and magnetism

by Maxwell, James Clerk, 1831-1879

Published 1873

Volume 1
Publisher Oxford : Clarendon Press
Pages 504https://archive.org/details/electricandmagne01maxwrich

2)

A treatise on electricity and magnetism

by Maxwell, James Clerk, 1831-1879

Published 1873


Volume 2
Publisher Oxford : Clarendon Press
Pages 500

https://archive.org/details/electricandmagne02maxwrich