Philosophical Magazine

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Taylor & Francis., 1828

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Pagina 485 - London's Encyclopaedia of Agriculture: comprising the Laying-out, Improvement, and Management of Landed Property, and the Cultivation and Economy of the Productions of Agriculture. With 1,100 Woodcuts. 8vo. 21s. London's Encyclopaedia of Gardening: comprising the Theory and Practice of Horticulture, Floriculture, Arboriculture, and Landscape Gardening.
Pagina 380 - The most accurate in observation, the most philosophical in contemplation, and the most faithful in description, amongst all the botanists of his own, or perhaps any other time.
Pagina 488 - Systematic Education ; or Elementary Instruction in the various Departments of Literature and Science, with Practical Rules for studying each branch of Useful Knowledge.
Pagina 498 - If two triangles have one angle of the one equal to one angle of the other, and the sides about the equal angles proportionals, the triangles shall be equiangular to one another, and shall have those angles equal which are opposite to the homologous sides.
Pagina 499 - A point of land was observed, by a ship at sea, to bear east-by-south ; and after sailing north-east 12 miles, it was found to bear south-east-by-east. It is required to determine the place of that headland, and the ship's distance from it at the last observation ? Ans.
Pagina 488 - GIBBON'S HISTORY of the DECLINE and FALL of the ROMAN EMPIRE ; for the Use of Families and Young Persons. Reprinted from the original Text, with the careful Omission of all Passages of an irreligious or immoral tendency.
Pagina 163 - ... the particle. In a few instances the particle was seen to turn on its longer axis. These motions were such as to satisfy me, after frequently repeated observation, that they arose neither from currents in the fluid, nor from its gradual evaporation, but belonged to the particle itself.
Pagina 93 - To what extent subterraneous cavities may exist even in common rocks is shown in the limestone caverns of Carniola, some of which contain many hundred thousand cubical feet of air ; and in proportion as the depth of an excavation is greater, so is the air more fit for combustion. The same circumstance which would give alloys of the metals of the earths the power of producing volcanic phenomena, namely...
Pagina 486 - GENERAL LARGE LIBRARY ATLAS OF FIFTY-THREE MAPS, on Colombier Paper; with the Divisions and Boundaries carefully coloured. Constructed entirely from New Drawings, and engraved by SIDNEY HALL. New Edition, thoroughly revised and corrected...
Pagina 166 - I never failed to disengage the molecules in sufficient numbers to ascertain their apparent identity in size, form, and motion, with the smaller particles of the grains of pollen. I examined also various products of organic bodies, particularly the gum resins, and substances of vegetable origin, extending my inquiry even to pit-coal ; and in all these bodies molecules were found in abundance. I remark here also, partly as a caution to those who may hereafter engage in the same inquiry, that the dust...

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