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Updated: May 27, 2025
The gas is admitted through a half-inch pipe, and blows toward the fire-bridge through eighteen or twenty one-eighth inch jets. The air is blown in, at about 2 lbs. pressure, through two one and one-eighth-inch jets, obliquely down upon the centre of the hearth, and a very perfect combustion is obtained.
The top gained, a space was quickly selected and cleared, and a simple hut of flat stones begun, while the Captain unpacked his box. It contained a barometer, a maximum and minimum self-registering thermometer, wet and dry bulb, also a black bulb thermometer, a one-eighth-inch rain-gauge, and several other instruments.
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