. The wonderful century [microform] : its successes and its failures. Science; Nineteenth century; Vaccination; Civilization, Modern; Sciences; Dix-neuvième siècle; Vaccination; Civilisation moderne. I ill III. ^UA 152 THE WONDERFUL CENTURY. CHAP. XV. coinon to the powerful and ccononiieal eiif^incs of JJoul- toii and Watt. The priiici])lo, however, was known lonji^ before, and had been practh^ally a|)])lie(l in the previous eentury by the JManpiis of Worcester and by Savery; and the improvements made by Watt, thon^h very im- portant, liad a very limited result. The engines made were almost wh
. The wonderful century [microform] : its successes and its failures. Science; Nineteenth century; Vaccination; Civilization, Modern; Sciences; Dix-neuvième siècle; Vaccination; Civilisation moderne. I ill III. ^UA 152 THE WONDERFUL CENTURY. CHAP. XV. coinon to the powerful and ccononiieal eiif^incs of JJoul- toii and Watt. The priiici])lo, however, was known lonji^ before, and had been practh^ally a|)])lie(l in the previous eentury by the JManpiis of Worcester and by Savery; and the improvements made by Watt, thon^h very im- portant, liad a very limited result. The engines made were almost wholly used in pumping the water (mt of deej) mines, and the bulk of the population knew no more of them, nor derived any more direct K nefit from them, than if they had not existed. In tli^ seventeenth century, the one great and far- reaching invention was that of the Telescope, which, in its immediate results of extending our knowledge of the universe and giving possibilities of future knowledge not yet exhausted, may rank ^\'ith spectrum analysis in our own era. The Barometer and Thermometer are minor discoveries. In the sixteenth century we have no invention of the first rank, but in the fifteenth we have Printing. The j\[ariner's Compass was invented early in the fourteenth century, and was of great importance in ren- dering ocean navigation possible and thus facilitating the discovery of America. Then, backward to the davm of history, or rather to prehistoric times, we have the two great engines of knowledge and discovery—the Indian or Arabic numerals leading to arithmetic and algebra, and, more remote still, the invention of alphabetical writing. Summing these up, we find only five inventions of the first rank in all preceding time—the telescope, the printing-press, the mariner's compass, Arabic numerals, and alphabetical writing, to which we may add the 4 ^v. Please note that these images are extracted from scanned page images that may have been digitally enhanced f
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