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      Lady Longmere replied generally that it would benefit Bruce in the long run. Lady Rockingham came up and said it was very hot. After his rebuff Bruce stood by as if unconscious of Lady Rockingham's presence.

      A modern turbine water-wheel, one of the best construction, operating under favourable conditions, gives a percentage of the power of the water which, after deducting the friction of the wheel, almost reaches the theoretical coefficient or equals the gravity of the water; it may therefore be assumed that there will in the future be but little improvement made in such water-wheels except in the way of simplifying and cheapening their construction. There is, in fact, no other class of machines which seem to have reached the same state of improvement as water-wheels, nor any other class of machinery that is constructed with as much uniformity of design and arrangement, in different countries, and by different makers.

      It will have been observed that, so far, the merit of originating atomism has been attributed to Leucippus, instead of to the more celebrated Democritus, with whose name it is usually associated. The two were fast friends, and seem always to have worked together in perfect harmony. But Leucippus, although next to nothing is known of his life, was apparently the older man, and from him, so far as we can make out, emanated the great idea, which his brilliant coadjutor carried into every department of enquiry, and set forth in works which are a loss to literature as well as to science, for the poetic splendour of their style was not less remarkable than the encyclopaedic range of their contents. Democritus was born at Abdra, a Thracian city, 470 B.C., a year before Socrates, and lived to a very advanced agemore than a hundred, according to some accounts. However this may be, he was probably, like most of his great countrymen, possessed of immense vitality. His early manhood was spent in Eastern travel, and he was not a little proud of the numerous countries which he had visited, and the learned men with whom he had conversed. His time was mostly occupied in observing Nature, and in studying mathematics; the sages of Asia and Egypt may have acquainted him with many useful scientific facts, but we have seen that his philosophy was derived from purely Hellenic sources. A few fragments of his numerous writings still survivethe relics of an intellectual Ozymandias. In them are briefly shadowed forth the conceptions which Lucretius, or at least his modern36 English interpreters, have made familiar to all educated men and women. Everything is the result of mechanical causation. Infinite worlds are formed by the collision of infinite atoms falling for ever downward through infinite space. No place is left for supernatural agency; nor are the unaided operations of Nature disguised under Olympian appellations. Democritus goes even further than Epicurus in his rejection of the popular mythology. His system provides no interstellar refuge for abdicated gods. He attributed a kind of objective existence to the apparitions seen in sleep, and even a considerable influence for good or for evil, but denied that they were immortal. The old belief in a Divine Power had arisen from their activity and from meteorological phenomena of an alarming kind, but was destitute of any stronger foundation. For his own part, he looked on the fiery spherical atoms as a universal reason or soul of the world, without, however, assigning to them the distinct and commanding position occupied by a somewhat analogous principle in the system which we now proceed to examine, and with which our survey of early Greek thought will most fitly terminate.

      In one corner was an oblong table, surrounded by an eager, silent group. A bald-headed man with a matted black beard and a great curved nose was taking the place of banker. The great financier Isaac Isidore was as keen over the banknotes here as he was over the millions he gambled in the city.

      "Ah! not certainly. Where is your carbine?"

      A walking excursion of one day took me to201 Brussels. I might have done it in a few hours less, but I lost my way in the wood-paths near Brussels, for at a certain moment I read on a finger-post, "Brussels four miles"; and after walking for a long time, and wondering whether I should ever finish those four miles, I read suddenly: "Brusselseight miles!" That gave me such a shock that once more I had nearly taken the wrong way.


      A planing machine invented by Mr Bodmer in 1841, and since improved by Mr William Sellers of Philadelphia, is free from this elastic action of the platen, which is moved by a tangent wheel or screw pinion. In Bodmer's machine the shaft carrying the pinion was parallel to the platen, but in Sellers' machine is set on a shaft with its axis diagonal to the line of the platen movement, so that the teeth or threads of the pinion act partly by a screw motion, and partly by a progressive forward movement like the teeth of wheels. The rack on the platen of Mr Sellers' [134] machine is arranged with its teeth at a proper angle to balance the friction arising from the rubbing action of the pinion, which angle has been demonstrated as correct at 5°, the ordinary coefficient of friction; as the pinion-shaft is strongly supported at each side of the pinion, and the thrust of the cutting force falls mainly in the line of the pinion shaft, there is but little if any elasticity, so that the motion is positive and smooth.


      "It does, sir," Prout went on. "The question of handwriting is established. How those notes came into your possession we have yet to find out."


      Two soldiers now took everything I had in my pockets, even my watch and my purse. This brought also to light a German map of Belgium, with a stamp "For military use only." I was told in a gruff voice that this was a highly suspicious thing, and that they could not understand how it got into my possession. I replied quite coolly that I had bought the thing in Aix-la-Chapelle for one mark, where it could be had in many shops, and that the words "For the military only" merely revealed the shrewd German commercial instinct, which knows that people always like to possess things which are not meant for them.