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He had evidently hurried fast, for he was out of breath. He signified to his companion to sit down, and lighted a cigarette.Neither sixteen-year-old Larry Turner nor Dick Summers, a year his junior, had any more fear than had Sandy Maclaren, hardly thirteen and seated just back of the pilot who, in flying the four-place, low-wing airplane, had called back reassuringly.
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TWO:Shaping machines are divided into two classes, one modification with a lateral feed of the tools and cutter bar, technically called "travelling head machines," the other class with a feed motion of the table which supports the work, called table-feeding machines. The first modification is adapted for long pieces to be planed transversely, such as toothed racks, connecting rods, and similar work; the second class to shorter pieces where much hand adjustment is required.

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FORE:Flying past they could not fully understand.Wind-power, aside from the objections of uncertainty and irregularity, is the cheapest kind of motive-power. Steam machinery, besides costing a large sum as an investment, is continually deteriorating in value, consumes fuel, and requires continual skilled attention. Water-power also requires a large investment, greater in many cases than steam-power, and in many places the plant is in danger of destruction by freshets. Wind-power is less expensive in every way, but is unreliable for constancy except in certain localities, and these, as it happens, are for the most part distant from other elements of manufacturing industry. The operation of wind-wheels is so simple and so generally understood that no reference to mechanism need be made here. The force of the wind, moving in right lines, is easily applied to producing rotary motion, the difference from water-power being mainly in the comparative weakness of wind currents and the greater area required in the vanes upon which the wind acts. Turbine wind-wheels have been constructed on very much the same plan as turbine water-wheels. In speaking of wind-power, the propositions about heat must not be forgotten. It has been explained how heat is almost directly utilised by the steam-engine, and how the effect of heat is utilised by water-wheels in [42] a less direct manner, and the same connection will be found between heat and wind-wheels or wind-power. Currents of air are due to changes of temperature, and the connection between the heat that produces such air currents and their application as power is no more intricate than in the case of water-power.

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On August 25th the Antwerp garrison made a sortie, in the direction of Louvain. At the beginning the Belgians were successful, and came within four and a half miles of this town. For a moment the situation became critical, and at about seven o'clock a small troop of cavalry came at a furious gallop from the scene of battle to Louvain, probably to summon the assistance of the garrison.On Thursday, August 20th, I decided to go once more in the direction of Tongres. As the Germans had picketed the main road along the Netherland frontier, I made a detour and dragged my bicycle across the mountain near Petit Laney, a very trying job in the stifling heat. From the mountain top I had a beautiful vista, which enabled me to see that near Riemst a large German force was encamped at which I desired to have a look. So I walked down the hill to Canne, where some crofters were trying to get their cattle into The Netherlands. These poor creatures, who usually own two or three head of cattle, had been compelled already to give up half of their stock. From Canne I cut through corn and beetroot fields to the road to Riemst. The first German sentinels were tolerably friendly.These four types comprehend the motive-power in general use at the present day. In considering different engines for motive-power in a way to best comprehend their nature, the first view to be taken is that they are all directed to the same end, and all deal with the same power; and in this way avoid, if possible, the impression of there being different kinds of power, as the terms water-power, steam-power, and so on, seem to imply. We speak of steam-power, water-power, or wind-power; but power is the same from whatever source derived, and these distinctions merely indicate different natural sources from which power is derived, or the different means employed to utilise and apply it.
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