The journey was pressed with the same vigor through the afternoon, the men seeming as tireless as the dogs, who trotted along as they might have done over the bare ground without any load impeding their movements.

The sun was still above the horizon when the party reached the crest of the mountains near the coast, and saw before them, nestling at the curve of a fiord, a collection of low, weather-beaten houses, dispersed along the slope of the hills, with a wharf at the water's edge, on which lay a large number of blocks of the peculiar white ore known as cryolite.

"Vee-tut, vee-tut!" exclaimed one of the drivers, addressing the passengers with great animation. This was the nearest he was able to come to pronouncing the name "Ivigtut."

Yes, this was the mining town famous the world over as containing the only cryolite mines so far discovered on the globe.

Ivigtut is in latitude sixty-one degrees and twelve minutes north, its climate being severe at certain seasons, but comparatively moderate during summer. Then there are one hundred and thirty picked men from Copenhagen engaged in the quarries, the number being a little more than one-half as great in winter. Only one or two Esquimaux are to be found about the place, and the only family that of the superintendent, who has his wife and her maid with him.

The principal work of the employees is in quarrying the cryolite and piling it on the wharf, ready for shipment both to the Old and New World. And now how many of my readers can tell me what cryolite is? Shall I explain?

Do you know that most of the sal-soda, the bicarbonate of soda, the alum, and the caustic soda used in your homes is dug out of a mountain in Greenland?

In 1806, a German named Giesecke, believing that valuable minerals might be found in Greenland, applied to the Danish Government for permission to prospect the mountains. He did so, all the way from Cape Farewell, living with the Danish governors or among the Esquimaux, as circumstances required, until he reached Arsuk Fiord.

At this place he heard of a deposit of ice that never melted and which was on the edge of the fiord. It was powdered, was used by the natives in tanning skins, and acted on a greasy hide like soap. The prospector gathered a number of specimens and started with them for Germany, for the substance was entirely new and required analysis.

On the homeward voyage the Danish ship was captured by a British man-of-war and the specimens of cryolite went to an English institution, where they were analyzed for the first time. It was interesting of itself, but pronounced comparatively worthless.