Translations:Benutzer:Arian/Klett-Mini-Test/1210/en

The diagnostics of the crystal texture of copper chloride images rests on the comparison of the crystal image of the fresh extract with those from ageing stages of the same. Underlying this procedure is the consideration that the rate at which the fresh juice decomposes (ages) under defined conditions is a function of the quality of this fresh-juice extract. One finds that ageing — that is, autolytically and microbially degrading — plant extracts imprint themselves in the crystal image in a sequence of reproducible crystal-image types, so-called ageing stages (Figure 19, p. 320).