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THREE:Cores expand when heated, and require an allowance in their dimensions the reverse from patterns; this is especially the case when the cores are made upon iron frames. For cylindrical cores less than six inches diameter, or less than two feet long, expansion need not be taken into account by pattern-makers, but for large cores careful calculation is required. The expansion of cores is as the amount of heat imparted to them, and the amount of heat taken up is dependent upon the quantity of metal that may surround the core and its conducting power."Forget it," she said, hoarsely. "I--I never meant a word of it. Leave me now. Send me something to soothe these frayed nerves of mine. Only leave me alone."

THREE:As I went a patrol marched out—reinforcements had again come from Tongres—whose task was to clear the district of the enemy. The patrol consisted of six Death-head hussars, about forty bicyclists, and the rest infantry, altogether about four hundred men, who were able to keep together, because the hussars and the cyclists proceeded very slowly and cautiously in the direction of Lanaeken. I went with them, chatting with one of the officers. As soon as they had got to the road, the greatest caution188 was observed. The hussars went in front, followed by some of the infantry, all in loose formation, continually looking about in all directions, with the finger at the cock of the rifle.A little farther away they were still busy with Lierce, but excepting these four, all the forts were now taken by the Germans. I stood there for a moment, gazing at these cannon, the presence of which was clearly unknown to the Belgians, for their artillery took no notice of them. Only the day before these guns had started shelling the forts, and on the evening of August 15th they had silenced two of them; but Loncin kept up the fight.

THREE:

THREE:“As I live and breathe! So you’re two of the lads who were in the other ‘crate’. Where’s the third—and was that Jeff with you? I thought it must be.”"I am so sorry," she said, "but my throat is all parched up. Dearest, do please get me some soda-water."

THREE:A book containing the pattern record should be kept, in which these catalogue numbers are set down, with a short description to identify the different parts to which the numbers belong, so that all the various details of any machine can at any time be referred to. Besides this description, there should be opposite the catalogue of pattern numbers, ruled spaces, in which to enter the weight of castings, the cost of the pattern, and also the amount of turned, planed, or bored surface on each piece when it is finished, or the time required in fitting, which is the same thing. In this book the assembled parts of each machine should be set down in a separate list, so that orders for castings can be made from the list without other references. This system is the best one known to the writer, and is in substance a plan now adopted in many of the best engineering establishments. A complete system in all things pertaining to drawings and classifications should be rigidly adhered to; any plan is better than none, and the schooling of the mind to be had in the observance of systematic rules is a matter not to be neglected. New plans for promoting system may at any time arise, but such plans cannot be at any [87] time understood and adopted except by those who have cultivated a taste for order and regularity.