Nature, Volume 47Sir Norman Lockyer Macmillan Journals Limited, 1893 - Electronic journals |
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acid animals appears Archibald Geikie Astronomical Auriga azoimide Baddeleyite body bright British carbon cells centimetres chemical College colour comet contains corona crystals December deposits described earth electric engine ephemeris exhibited experiments fact feet genus Geological give given Gneiss heat heliacal rising illustrated important inches Institute interesting investigation Islands larvæ lectures light lines liquid London magnetic matter means measure ment metal Metazoan meteoritic method Museum nature November object observations Observatory obtained osmotic pressure paper photographs plants plates pliocene present pressure probably produced Prof published quantity Quaternions question recent referred remarkable researches rocks Royal Geographical Society Royal Society schists scientific side solar solution South species specimens spectrum Sphenophyllum stars substance surface temperature theory Thoth tiglic acid tion tube University vapour vector velocity volume
Popular passages
Page 28 - THE BEAUTIES OF NATURE AND THE WONDERS OF THE WORLD WE LIVE IN.
Page 128 - Ampere, which is one-tenth of the unit of current of the CGS system of electromagnetic units and which is represented sufficiently well for practical use by the unvarying current which, when passed through a solution of nitrate of silver in water, in accordance with a certain specification, deposits silver at the rate of 0.001118 of a gramme per second.
Page 279 - The introduction of elementary natural history into the earlier years of the programme as a substantial subject, to be taught by demonstrations and practical exercises rather than from books. 2. The introduction of elementary physics into the later years of the programme as a substantial subject, to be taught by the experimental or laboratory method, and to include exact weighing and measuring by the pupils themselves.
Page 108 - The sympathy also which appears to exist between forces operating in the sun and magnetic forces belonging to the earth merits a continuance of that close attention which it has already received from the British Association, and of labours such as General Sabine has with so much ability and effect devoted to the elucidation of the subject. I may here notice that most remarkable phenomenon which was seen by independent observers at two different places on the 1st of September 1859.
Page 128 - That the magnitudes of these standards should be determined on the electro-magnetic system of measurement with reference to the centimetre as unit of length, the gramme as unit of mass, and the second as unit of time, and that by the terms centimetre and gramme are meant the standards of those denominations deposited with the Board of Trade. 3. That the standard of electrical resistance should be denominated the ohm, and should have the value 1,000,000,000 in terms of the centimetre and second. 4....
Page 233 - ... according to the judgment of the Royal Academy of Sciences of Turin, shall have made the most important and useful discovery, or published the most valuable work on physical and experimental science, natural history, mathematics, chemistry, physiology, and pathology, as well as geology, history, geography, and statistics.
Page 17 - Insects," by Mr. T. Digby Pigott, has been issued by Mr. H. Porter. Along with the essays on these subjects have been printed several other bright and attractive sketches. AN elaborate index to the genera and species described in the " Palaeontologia Indica,
Page 28 - Thus has the Author of nature provided that they may enter these nests and deposit their eggs undiscovered. Did these intruders venture themselves amongst the humble-bees in a less kindred form, their lives would probably pay the forfeit of their presumption.
Page 277 - ... energy to the practical applications of the science. He became one of the highest authorities on mining matters in the country, and he was mainly instrumental in the equipment of the great mining school of Columbia College, New York. He occupied the Chair of Geology in that establishment, and threw himself heart and soul into its duties. At last, in the midst of his work and honours, a stroke of paralysis disabled him from active duties, and he grew gradually feebler until his death. With him...
Page 73 - ... without reserve. Turn, however, to page 28 and we find that this freedom of animals is no longer restricted merely by the equal freedom of others, but is also " subject to the limitations imposed by the permanent needs and interests of the whole community.