CHAPTER XV.

FIFTEEN MILES FROM CAPE BATHURST.

September had now commenced, and as upon the most favourable calculation only three more weeks would intervene before the bad season set in and interrupted the labours of the explorers, the greatest haste was necessary in completing the new buildings, and Mae-Nab and his workmen surpassed themselves in industry. The dog-house was on the eve of being finished, and very little remained to be done to the palisading which was, to encircle the fort. An inner court had been constructed, in the shape of a half-moon, fenced with tall pointed stakes, fifteen feet high, to which a postern gave entrance. Jaspar Hobson favoured the system of an unbroken enclosure with detached forts (a great improvement upon the tactics of Vauban and Cormontaigne), and knew that to make his defence complete the summit of Cape Bathurst, which was the key of the position, must be fortified; until that could be done, however, he thought the palisading would be a sufficient protection, at least against quadrupeds.

The next thing was to lay in a supply of oil and lights, and accordingly an expedition was organised to a spot about fifteen miles distant where seals were plentiful, Mrs Paulina Barnett being invited to accompany the sportsmen, not indeed for the sake of watching the poor creatures slaughtered, but to satisfy her curiosity with regard to the country around Cape Bathurst, and to see some cliff's on that part of the coast which were worthy of notice. The Lieutenant chose as his other companions, Sergeant Long, and the soldiers Petersen, Hope, and Kellet, and the party set off at eight o'clock in the morning in two sledges, each drawn by six dogs, on which the bodies of the seals were to be brought back. The weather was fine, but the fog which lay low along the horizon veiled the rays of the sun, whose yellow disk was now beginning to disappear for some hours during the night, a circumstance which attracted the Lieutenant's attention, for reasons which we will explain.

That part of the shore to the west of Cape Bathurst rises but a few inches above the level of the sea, and the tides are-or are said to be-very high in the Arctic Ocean-many navigators, such as Parry, Franklin, the two Rosses, M'Clure, and M'Clintock, having observed that when the sun and moon were in conjunction the waters were sometimes twenty-five feet above the ordinary level. How then was it to be explained that the sea did not at high tide inundate Cape Bathurst, which possessed no natural defences such as cliffs or downs? What was it, in fact, which prevented the entire submersion of the whole district, and the meeting of the waters of the lake with those of the Arctic Ocean?

Jaspar Hobson could not refrain from remarking on this peculiarity to Mrs Barnett, who replied somewhat hastily that she supposed that there were-in spite of all that had been said to the contrary-no tides in the Arctic Ocean.

"On the contrary, madam," said Hobson, "all navigators agree that the ebb and flow of Polar seas are very distinctly marked, and it is impossible to believe that they can have been mistaken on such a subject."

"How is it, then," inquired Mrs Barnett, "that this land is not flooded when it is scarcely ten feet above the sea level at low tide?"

"That is just what puzzles me," said Hobson; "for I have been attentively watching the tides all through this month, and during that time they have not varied more than a foot, and I feel certain, that even during the September equinox, they will not rise more than a foot and a half all along the shores of Cape Bathurst."

"Can you not explain this phenomenon?" inquired Mrs Barnett.

"Well, madam," replied the Lieutenant, "two conclusions are open to us, either of which I find it difficult to believe; such men as Franklin, Parry, Ross, and others, are mistaken, and there are no tides on this part of the American coast; or, as in the Mediterranean, to which the waters of the Atlantic have not free ingress, the straits are too narrow to be affected by the ocean currents."

"The latter would appear to be the more reasonable hypothesis, Mr Hobson."

"It is riot, however, thoroughly satisfactory," said the Lieutenant, "and I feel sure that if we could but find it, there is some simple and natural explanation of the phenomenon."

After a monotonous journey along a flat and sandy shore, the party reached their destination, and, having unharnessed the teams, they were left behind lest they should startle the seals.