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acid animals apparatus appears aurora aurora borealis British carbon cause centimetre Cetacea chromoplasts clouds coast colour comet contains corresponding deflexion described direction distance earth electric electric current exhibited expedition experiments fact feet fish Fisheries flora galvanometer give given glacier glass Greenland heat horizontal inches instrument interesting iron island known less light Lord Rayleigh lower magnetic matter means measure ment metal method metres millimetre molecules motion Museum nature object observations Observatory obtained ordinary paper Paris Observatory Permian photographs plants plates polarisation polarity position present pressure probably produced Prof regard region remarkable researches right ascension rocks Royal Society scientific seen Silurian solar sound-post species specimens spectrum stars sunspots surface temperature theory thickness tion tube uranium glass vertical vibrations whilst wire
Page 23 - 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...
Page 274 - 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.
Page 288 - 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.
Page 80 - 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.
Page 99 - 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...
Page 113 - 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.
Page 43 - 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.
Page 96 - 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.
Page 131 - Literature and Science.'' by M. Arnold, MA 1883 "The Origin of the existing forms of Animal Life: Construction or Evolution?
Page 65 - 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...