transparent. A slight sediment had formed which mainly consisted of gypsum in crystalline forms. Its specific gravity is 1.088 at 60° Fah., and the total amount of dissolved matter present to the gallon is 13,638 grains, which is made up as follows:—

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This is therefore shown to be a highly saline water, and charged with free acid to such an extent as in all probability will render it useless for medical purposes.

A full description of the mode of occurrence of this water and the geological structure of White Island have been given by Dr. Hector.^*