It seemed to some of us almost heartless to deprive the Martians who still remained alive of any of the provisions which they themselves would require to tide them over the long period which must elapse before the recession of the flood should enable them to discover the sites of their ruined homes, and to find the means of sustenance. But necessity was now our only law. We learned from Aina that there must be stores of provisions in the neighborhood of the palace, because it was the custom of the Martians to lay up such stores during the harvest time in each Martian year in order to provide against the contingency of an extraordinary drought. It was not with very good grace that the Martian Emperor acceded to our demands that one of the storehouses should be opened, but resistance was useless, and of course we had our way. The supplies of water which we brought from the earth, owing to a peculiar process invented by Monsieur Moissan, had been kept in exceedingly good condition, but they were now running low and it became necessary to replenish them also. This was easily done from the Southern Ocean, for on Mars, since the levelling of the continental elevations, brought about many years ago, there is comparatively little salinity in the sea waters. While these preparations were going on Lord Kelvin and the other men of science entered with the utmost eagerness upon those studies, the prosecution of which had been the principal inducement leading them to embark on the expedition. But, almost all of the face of the planet being covered with the flood, there was comparatively little that they could do. Much, however, could be learned with the aid of Aina from the Martians, now crowded on the land about the palace. The results of these discoveries will in due time appear, fully elaborated in learned and authoritative treatises prepared by these savants themselves. I shall only call attention to one, which seemed to me very remarkable. I have already said that there were astonishing differences in the personal appearance of the Martians, evidently arising from differences of character and education, which had impressed themselves in the physical aspect of the individuals. We now learned that these differences were more completely the result of education than we had at first supposed. Looking about among the Martians by whom we were surrounded, it soon became easy for us to tell who were the soldiers and who were the civilians, simply by the appearance of their bodies, and particularly of their heads. All members of the military class resembled, to a greater or less extent, the monarch himself, in that those parts of their skulls which our phrenologists had designated as the bumps of destructiveness, combativeness and so on were enormously and disproportionately developed.