The provisions were brought out, and justice was done to their meal. Mary Grant and the Major, who had not thought highly of the edible fern till then, now ate of it heartily.

The halt lasted till two o'clock in the afternoon, then they resumed their journey; and in the evening they stopped eight miles from the mountains, and required no persuasion to sleep in the open air.

Next day was one of serious difficulties. Their route lay across this wondrous region of volcanic lakes, geysers, and solfataras, which extended to the east of the Wahiti Ranges. It is a country more pleasant for the eye to ramble over, than for the limbs. Every quarter of a mile they had to turn aside or go around for some obstacle, and thus incurred great fatigue; but what a strange sight met their eyes! What infinite variety nature lavishes on her great panoramas!

On this vast extent of twenty miles square, the subterranean forces had a field for the display of all their varied effects. Salt springs, of singular transparency, peopled by myriads of insects, sprang up from thickets of tea-tree scrub. They diffused a powerful odor of burnt powder, and scattered on the ground a white sediment like dazzling snow. The limpid waters were nearly at boiling point, while some neighboring springs spread out like sheets of glass. Gigantic tree-ferns grew beside them, in conditions analogous to those of the Silurian vegetation.