Description |
The advancement in the knowledge of the chemical and physical laws controlling the behavior of solutions has been so rapid in recent years that they now cover a large field, and extend into nearly every department of science which it is possible for them to be concerned. Among the most important branches that have been influenced greatest in the direction of making the observed facts harmonize with the theory of solutions, is petrology. This subject is especially desirable as it presents phenomena outside of the physical and chemical laboratories. The facts as observed have not been produced by carefully arranged apparatus, but have been found ready made in nature. |