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In planing and turning, the tools require no exact form; they can be roughly made, except the edge, and even this, in most cases, is shaped by the eye. Such tools are maintained at a trifling expense, and the destruction of an edge is a matter of no consequence. The form, temper, and strength can be continually adapted to the varying conditions of the work and the hardness of material. The line of division between planing and milling is fixed by two circumstancesthe hardness and uniformity of the material to be cut, and the importance of duplication. Brass, clean iron, soft steel, or any homogeneous metal not hard enough to cause risk to the tools, can be milled at less expense than planed, provided there is enough work of a uniform character to justify the expense of milling tools. Cutting the teeth of wheels is an example where milling is profitable, but not to the extent generally supposed. In the manufacture of small arms, sewing machines, clocks, and especially watches, where there is a constant and exact duplication of parts, milling is indispensable. Such manufactures are in some cases founded on milling operations, as will be pointed out in another chapter.

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Ren Lalage thought not. All the same, he seemed puzzled. But he could not be definite, and Prout was fain to be content.A band was playing somewhere; there were voices pitched high close by; then came the clear laugh of Lady Longmere.
ONE:"Lock your door as a precaution," Balmayne whispered. "I'm going now."
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FORE:
FORE:Soldiers came from and went back to the Yser, which river I saw three times during the fierce fighting.
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FORE:
It looks safe for a landingpretty solid beach, Larry concluded, and evidently Jeff felt the same way for he climbed in his turning bank, got the wind right and came down, using his engine with partly opened throttle to help him settle gradually until the landing wheels touched when the tail dropped smartly, the gun was cut, and the sand, fairly level and reasonably well-packed, dragged them to a stop.She was all but ready, dolled up like a circus, I guess, Jeff grinned, and then became very sober. All the jewelry was spread out to try how this and that one looked, with her clothes, separate and in different combinations.219Only the youngest member of the trio, as the craft nosed into a gentle glide and banked in a turn to get in position to shoot the private landing spot on the old estate, took the occasion as anything but a lark."Another one to you," said Bruce. "I did an old Dutch picture recently. But how on earth you managed----"
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