On the regular growth of soluble salts on each other

Abstract

Previous work on the regular growth of crystals of salts on those of Minerals belonging to the same isostructural series led the author to the discovery that parallel deposition is conditioned by closeness, not of angle nor of axial ratios, but of molecular volume. Now although the substances previously examined resemble each other crystallographically, yet they exhibit such great differences in chemical properties, that reasonable doubt might be entertained whether conclusions drawn from them can be directly applied to isomorphous substances ; and it therefore became advisable to extend the observations to a group of the latter.