  Independent of Maxwell, in 1867 the Danish physicist L. V. Lorenz proposed a
theory in which he identified light with electrical oscillations propagating in
a very poor conductor. Lorenz's electrodynamic theory of light, which formally
was equivalent to Maxwell's theory but physically quite different from it, was
published in well-known journals in German and English but soon fell into
oblivion. In 1867 Lorenz also published a paper on his new theory in a
semi-popular Danish journal which has generally been overlooked. This other
paper is here translated into English and provided with the necessary
annotations.
