Nature, 第 28 卷Sir Norman Lockyer Macmillan Journals Limited, 1883 |
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第 6 頁
... nearly stung a cow to death at a distance of about a hundred yards from the apiary ; and on another occasion a horse , still wet with sweat , trespassed too near a hive , with the result that the whole apiary was in an uproar , and some ...
... nearly stung a cow to death at a distance of about a hundred yards from the apiary ; and on another occasion a horse , still wet with sweat , trespassed too near a hive , with the result that the whole apiary was in an uproar , and some ...
第 18 頁
... nearly constant amount ( about o ° 62 ) . This law , he asserts , is general if it is admitted that physical molecules may be composed of two , and in some few cases of three chemical molecules . WROBLEWSKI ( whose experiments have been ...
... nearly constant amount ( about o ° 62 ) . This law , he asserts , is general if it is admitted that physical molecules may be composed of two , and in some few cases of three chemical molecules . WROBLEWSKI ( whose experiments have been ...
第 25 頁
... nearly 68 million acres ; for seminaries or universities , two townships , or 46,080 acres in each State , and in some instances a greater quantity . An additional grant in 1862 of 30,000 acres for each senator which each State was ...
... nearly 68 million acres ; for seminaries or universities , two townships , or 46,080 acres in each State , and in some instances a greater quantity . An additional grant in 1862 of 30,000 acres for each senator which each State was ...
第 26 頁
... nearly 100 times the number ( 40,813 ) learn German ; against nearly 650,000 who learn spelling . Where the ordinary primary education is good in America , evening schools of elementary grades are less sought after than those of ...
... nearly 100 times the number ( 40,813 ) learn German ; against nearly 650,000 who learn spelling . Where the ordinary primary education is good in America , evening schools of elementary grades are less sought after than those of ...
第 27 頁
... nearly equals the entire number of them in England , making a total nearly reaching 3000 . Though many of these are very small and to be compared with school libraries here , yet they average all through 4000 volumes in each . A large ...
... nearly equals the entire number of them in England , making a total nearly reaching 3000 . Though many of these are very small and to be compared with school libraries here , yet they average all through 4000 volumes in each . A large ...
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熱門章節
第 25 頁 - Education as set forth in the act which established it is that of — •collecting such statistics and facts as shall show the condition and progress of •education in the several States and Territories, and of diffusing such information respecting the organization and management of schools and school systems, and methods of teaching, as shall aid the people of the United States in the establishment and maintenance of efficient school systems, and otherwise promoting — the cause of education...
第 274 頁 - To form some conception of the degree of coarse-grainedness indicated by this conclusion, imagine a rain drop, or a globe of glass as large as a pea, to be magnified up to the size of the earth, each constituent molecule being magnified in the same proportion. The magnified structure would be coarser grained than a heap of small shot, but probably less coarse grained than a heap of cricketballs.
第 288 頁 - Measures of cleanliness, taken beforehand, are of far more importance for the protection of a district against Cholera than removal or disinfection of filth after the disease has actually made its appearance.
第 82 頁 - When the condors are wheeling in a flock round and round any spot, their flight is beautiful. Except when rising from the ground, I do not recollect ever having seen one of these birds flap its wings.
第 101 頁 - But if we give up the principle in one case, if we do not admit that the variations of the primeval dog were intentionally guided in order that the greyhound, for instance, that perfect image of symmetry and...
第 115 頁 - University for at least three terms during tenure. The tenure is for three years, but may be renewed for the whole or part of a second period of three years. Any balance of the income from the Fund is to be devoted to the furtherance of original research in Biology, especially Animal Morphology, by grants for such purpose to the Balfour Student or to any other person engaged in such research.
第 45 頁 - The escape of electricity cannot be detected by the sense of smell, as can gas, but it can be detected by apparatus far more certain and delicate. Leakage not only means waste, but in the presence of moisture it means destruction of the conductor and its insulating covering, by electric action.
第 98 頁 - CONTRIBUTIONS TO THE PHYSICAL HISTORY OF THE BRITISH ISLES ; with a Dissertation on the Origin of Western Europe and of the Atlantic Ocean. With 27 Coloured Maps.
第 133 頁 - Literature and Science.'' by M. Arnold, MA 1883 "The Origin of the existing forms of Animal Life: Construction or Evolution?
第 67 頁 - The subject of the utilization of electricity for purposes of defence did, however, not receive systematic investigation in England or other countries until some years afterwards, when the great importance of submarine mines as engines of war was demonstrated by the number of ships destroyed and injured during the war in America. Twenty-five vessels belonging to the Federal navy were destroyed, and nine others injured, by the explosion of...