What people are saying - Write a review
We haven't found any reviews in the usual places.
Other editions - View all
acid animals apparatus appears aurora aurora borealis British carbon cause centimetre Cetacea chromoplasts clouds coast colour comet contains corresponding deflexion described direction distance electric exhibited expedition experiments fact feet fish Fisheries flora Francis Galton 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 passed 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 zodiacal light
Page 25 - 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 278 - 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 101 - The shape of the fragments of stone at the base of our precipice may be called accidental, but this is not strictly correct ; for the shape of each depends on a long sequence of events, all obeying natural laws ; on the nature of the rock, on the lines of...
Page 101 - ... stones for his arches, elongated stones for his lintels, and flat stones for his roof, we should admire his skill and regard him as the paramount power. Now the fragments of stone, though indispensable to the architect, bear to the edifice...
Page 292 - 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 294 - Standard. *' Will be of great assistance to any entomologist wishing to commence the study of our native ants ; while as an interesting volume for the general reader, or as a giftbook for young people with a taste for natural history, it may be recommended as among the very best of its kind.
Page 45 - 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 133 - Literature and Science.'' by M. Arnold, MA 1883 "The Origin of the existing forms of Animal Life: Construction or Evolution?
Page 101 - ... might be formed, — no shadow of reason can be assigned for the belief that variations, alike in nature and the result of the same general laws, which have been the groundwork through natural selection of the formation of the most perfectly adapted animals in the world, man included, were intentionally and specially guided. However much we may wish it, we can hardly follow Professor Asa Gray in his belief "that variation has been led along certain beneficial lines," like a stream "along definite...
Page 250 - Now let a second plate of zinc be brought by a similar process to the other side of the plate of copper ; a second plate of copper to the remote side of this second plate of zinc, and so on till a pile is formed consisting of 50,001 plates of zinc and 50,000 plates of copper, separated by 100,000 spaces, each plate and each space one hundred-thousandth of a centimetre thick. The whole work done by electric attraction in the formation of this pile is two centimetre grammes.