To meet the demand for a smaller type of engine for use on training machines, the Rolls-Royce firm produced the 鈥楬awk鈥?Vee-type engine of 100 horse-power, and, intermediately between this and the 鈥楨agle,鈥?the 鈥楩alcon鈥?engine came to being with an original rated horse-power of 205 at 1,800 revolutions per minute, in April of 1916. Here was another case of growth of power in the same engine through research, almost similar to that of the 鈥楨agle鈥?type, for by July of 1918 the 鈥楩alcon鈥?was developing 285 horse-power with no radical alteration of design. Finally, in response to the constant demand for increase of power in a single plant, the Rolls-Royce company designed and produced the 鈥楥ondor鈥?type of engine, which yielded 600 horse-power on its first test in August of 1918. The cessation of hostilities and consequent falling off in the demand for extremely high-powered plants prevented the 鈥楥ondor鈥?being developed to its limit, as had been the 鈥楩alcon鈥?and 鈥楨agle鈥?types. 鈥淚t鈥檚 not hard to run an antelope to death,鈥?the stranger said. 鈥淚 can show you how it鈥檚 done.鈥? SCENE I. 彩票数据统计筛选软件 鈥淚t鈥檚 not hard to run an antelope to death,鈥?the stranger said. 鈥淚 can show you how it鈥檚 done.鈥? It is a singular thing, but I have remarked very often that men in general are apt to think pretty girls too good for anybody but themselves! 銆€銆€IT ALL BEGAN with a simple question that no one could answer. At length Mrs. Errington slowly nodded her head two or three times, drew a long breath, folded her hands, and, assuming a judicial air, spoke as follows: There were, in the list of aero engines compiled in 1910, five rotary engines included, all air-cooled. Three429 of these were Gnome engines, and two of the make known as 鈥業nternational.鈥?They ranged from 21鈥? to 123 horse-power, the latter being rated at only 1鈥? lbs. weight per brake horse-power, and having fourteen cylinders, 4鈥?3 inches in diameter by 4鈥? inches stroke. By 1914 forty-three different sizes and types of rotary engine were being constructed, and in 1913 five rotary type engines were entered for the series of aeroplane engine trials held in Germany. Minor defects ruled out four of these, and only the German Bayerischer Motoren Flugzeugwerke completed the seven-hour test prescribed for competing engines. Its large fuel consumption barred this engine from the final trials, the consumption being some 0鈥?5 pints per horse-power per hour. The consumption of lubricating oil, also was excessive, standing at 0鈥?23 pint per horse-power per hour. The engine gave 37鈥? effective horse-power during its trial, and the loss due to air resistance was 4鈥? horse-power, about 11 per cent. The accompanying drawing shows the construction of the engine, in which the seven cylinders are arranged radially on the crank case; the method of connecting the pistons to the crank pins can be seen. The mixture is drawn through the crank chamber, and to enter the cylinder it passes through the two automatic valves in the crown of the piston; the exhaust valves are situated in the tops of the cylinders, and are actuated by cams and push-rods. Cooling of the cylinder is assisted by the radial rings, and the diameter of these rings is increased round the hottest part of the cylinder. When long flights are undertaken the advantage of the light weight of this engine is more than counterbalanced by its high fuel and lubricating oil consumption, but there are other430 makes which are much better than this seven-cylinder German in respect of this. He clasped his arms round her with a sudden impetuous movement, but she held him off with her two hands on his shoulders. "No, but please listen! I did love somebody else once very much. Of course we were very young, and it was nonsense. But I did wrong in being secret, and keeping it from father. And I never want to be secret any more. And鈥攖hough I do like you very much, and鈥攁nd鈥擨 should be very sorry if you went away鈥攜et it isn't quite the same that I felt before. That is the truth as well as I can say it, and I am very grateful to you for thinking so well of me." He laughed a little forced laugh, but he looked relieved, too. 鈥淚t鈥檚 not hard to run an antelope to death,鈥?the stranger said. 鈥淚 can show you how it鈥檚 done.鈥? He looked across the group round the fire to Rhoda, who happened to raise her eyes at that moment, and being taken by surprise at meeting his, dropped them hastily, with a vivid blush. Rhoda's blushes were as unmeaning as the smiles of an infant. The most trivial cause made her change colour, as Algernon very well knew. But at least the soft bright pink hue on pretty Rhoda's cheek showed some emotion, however slight or transient, at the sight of him. And, moved partly by a boyish, pettish resentment against the others, partly by the desire to hear a pleasant voice and pleasant words, and look upon a pretty woman's face with its delicate contour and fine subtle changes of tint, he walked across the room and seated himself beside Rhoda Maxfield.