Page:McClure's Magazine v9 n3 to v10 no2.djvu/101

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THE GREAT DYNAMITE FACTORY AT ARDEER.
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deed, and sometimes even larger ones of leather confront you at the door of every danger house. No shoe which touches the ground outside is allowed to touch the floor of a danger department. The least grit might make friction and lead to an explosion. In all departments the girls are compelled to change to slippers or work barefooted, the majority, in summer, preferring the latter. Having stepped into the overshoes, you begin to flop like a great auk over the sheet-lead which covers the floor. The shoes are trying, particularly as you have other things to worry you. Snow-shoes, ski, and stilts can all be practiced on with advantage before endeavoring to get about in a pair of over-shoes which do not fit your own shoes and are ceaselessly trying to trip you up.

A DYNAMITE CARTRIDGE HOUSE.

In the small cabin before the house the girls stop to remove their walking-shoes before going to their work.

As you enter the nitrating-house your eye is caught by two lead cylinders, five feet in diameter and six feet deep, which are sunk in the floor. They have closed, dome-shaped tops, over which many lead pipes curl and into which they enter.

At the farther cylinder sits a man in scarlet watching a thermometer. He

INTERIOR OF A MIXING-HOUSE.

Here the mixture of kielselguhr, carbonate of ammonia, and nitroglycerin, which makes dynamite, is thoroughly worked by hand and put through a sieve.