After the death of his more moderateminded friend Adolf Sander (March 9th, 1845), Hecker's tone towards the government became more and more bitter.
Mention may be made of the phenomenon of halochromism, the name given to the power of colourless or faintly-coloured substances of combining with acids to form highly-coloured substances without the necessary production of a chromophoric group. The researches of Adolf von Baeyer and Villiger, Kehrmann, Kauffmann and others, show that this property is possessed by very many and varied substances.
To this list we must add the short but incomparable feuilletons (tdrezalevelek) of Dr Adolf Agai (writing under the nom de plume of Porz6), whose influence on the formation of modern Hungarian literary prose is hardly less important than the unique esprit and charm of his writings.
The distinction between real and nominal sovereignty was familiar to medieval writers, who recognized a double sovereignty, and distinguished between (1) the real or practical sovereignty resident in the people, and (2) the personal sovereignty of the ruler (Adolf Dock, Der Souveranitaitsbegrif, &c., p. 13).
A great part of the original of the Chronicle has been published by Adolf Bauer (Leipzig, 1905) from the Codex Matritensis Graecus, 22 I.
