"I see," said the Sergeant; "but it is a great puzzle to me how volcanoes can exist at all on Polar continents."
" Well, there are not many of them!" said Mrs Barnett.
"No, madam," replied Jaspar, "but they are not so very rare either; they are to be found in Jan Mayen's Land, the Aleutian Isles, Kamchatka, Russian America, and Iceland, as well as in the Antarctic circle, in Tierra del Fuego, and Australasia. They are the chimneys of the great furnace in the centre of the earth, where Nature makes her chemical experiments, and it appears to me that the Creator of all things has taken care to place these safety-valves wherever they were most needed."
"I suppose so," replied the Sergeant "and yet it does seem very strange to find them in this icy climate."
"Why should they not be here as well as anywhere else, Sergeant? I should say that ventilation holes are likely to be more numerous at the Poles than at the Equator!"
"Why so?" asked the Sergeant in much surprise.
"Because, if these safety-valves are forced open by the pressure of subterranean gases, it will most likely be at the spots where the surface of the earth is thinest, and as the globe is flattened at the poles, it would appear natural thatbut Kellet is making signs to us," added the Lieutenant, breaking off abruptly; "will you join us, Mrs Barnett?"
"No, thank you. I will stay here until we return to the fort. I don't care to watch the walrus slaughtered!"
"Very well," replied Hobson, "only don't forget to join us in an hour's time, meanwhile you can enjoy the view."
The beach was soon reached, and some hundred walrus had collected, either waddling about on their clumsy webbed feet, or sleeping in family groups. Some few of the larger males—creatures nearly four feet long, clothed with very short reddish fur—kept guard over the herd.
Great caution was required in approaching these formidable-looking animals, and the hunters took advantage of every bit of cover afforded by rocks and inequalities of the ground, so as to get within easy range of them and cut off their retreat to the sea.
On land these creatures are clumsy and awkward, moving in jerks or with creeping motions like huge caterpillars, but in water—their native element—they are nimble and even graceful; indeed
