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ammonia appears Association Astronomical atmosphere atomic weights atoms axis Berzelius bodies Brewster carbonate carbonic acid carboniferous chemical chemists Chimie chloride colour comet Committee compounds connexion considered contain copper crystalline crystals discovery effect elements Ephemeris examination experiments fact formations gases geological give glass heat Herschel hydrogen important inches inquiry instrument investigation iron isomorphous John Herschel labours light lime magnetic mass mean Meeting Memoirs mercury metal method mineral mineralogy nature nitric acid object observations obtained oolites optical oxide oxygen paper perturbations phaenomena Phil Philosophical planets portion potash present principle prism probably produced Professor properties published quantity radiation rays refraction remarkable researches retina right ascensions rocks salts screen similar Society soda solution species specific gravity stars strata substances sulphate sulphuret sulphuric acid surface tellurium temperature theory thermometer tion Trans vapour views weight Yorkshire Philosophical Society
Page 41 - be to give a stronger impulse and more systematic direction to scientific inquiry, to promote the intercourse of those who cultivate science in different parts of the British Empire, with one another, and with foreign philosophers, and to obtain a greater degree of national attention to
Page 41 - inquiry, to promote the intercourse of those who cultivate science in different parts of the British Empire, with one another, and with foreign philosophers, and to obtain a
Page 414 - well as the external outline of our globe, are elliptical, their centres being coincident, and their axes identical with that of the surface,—a state of things incompatible with a subsequent accommodation of the surface to a new and different state of rotation from that which determined the original distribution of the component matter.
Page 327 - which defy all such methods of examination, and which will yield only to the magical analysis of polarized light. A body which is quite transparent to the eye, and which appears upon examination to be as monotonous in its structure as it is in its aspect, will yet exhibit under polarized light the most exquisite organization,
Page 430 - same number of atoms combined in the same way produces the same crystalline form, and the same crystalline form is independent of the chemical nature of the atoms, and is determined only by their number and relative
Page 127 - Fellow of Trinity College, Cambridge ; and Plumian Professor of Astronomy and Experimental Philosophy in the University of Cambridge. THE
Page 274 - are extremely important. Supposing they all acquired the same degree of solar heat which was thus converted into heat of temperature, and then radiated from the surfaces as simple heat, the real conclusion established is, that the RADIATING powers of surfaces for simple heat are in the inverse order of their conducting powers.
Page 158 - for 1816, Burckhardt gave the results of a comparison of Delambre's Tables with a great number of Maskelyne's observations (far greater than the number on which they were founded). It appeared that the epoch, the perigee, and the eccentricity, required sensible alterations, and that the mass of Venus ought to be reduced about