American Journal of Science and Arts, Volume 18Kline Geology Laboratory, Yale University., 1830 |
Inhoudsopgave
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Overige edities - Alles bekijken
Veelvoorkomende woorden en zinsdelen
abundant alcohol ammonia animal anthracite appears ascertained beautiful beds bromine calcareous carbonate carbonic acid Cardamine rotundifolia character charcoal chlorine coal compound contains crystals cyanogen decomposition deposited earth edifice effect employed epidote experiments fact feet felspar flame fluid formation fossil fulminating silver glass gneiss Gothic grains granite Grecian green heat hornblende hundred hydrogen inches indigo iodine iron Journal light lime limestone magnesia magnetic mass mercury metallic mica miles mineral mountains muriatic acid natural nearly nitrate nitric acid notice observed obtained oxide oxygen piperin plants platina portion potassa precipitate present produced Prof quantity quartz remains remarkable river rocks rods salt sand Silica silk silver slate soda solution species specimens stone strata strontian substance sulphate sulphuretted sulphuric acid surface temperature thickness tion Tourmaline tube valley vapor variety vegetable veins weight XVIII.-No
Populaire passages
Pagina 79 - It consisted of long columns of a clear white light, shooting up from the horizon to the eastward, almost to the zenith and gradually spreading over the whole southern part of the sky. These columns were sometimes bent sideways at their upper extremities ; and though in
Pagina 218 - is worse than useless, it is mischievous, as it dissipates the attention, and draws it from the principal point. It may be remarked, that the impression which is left on our mind, even of things which are familiar to us, is seldom more than their general effect; beyond which
Pagina 17 - the most enduring stability and a simplicity of design peculiarly striking, are united with the highest elegance and accuracy of workmanship; the characteristic of the Doric style, whose chaste beauty is not in the opinion of the first artists, to be equalled by the graces of any of the other orders. A gentleman at
Pagina 219 - is hard to settle. We are sure that it is expressing the general effect of the whole, which alone can give to objects their true and touching character; and wherever this is observed, whatever else may be neglected, we acknowledge the hand of a master.
Pagina 217 - observe as a fundamental ground, common to all the arts with which we have any concern in this discourse,* that they address themselves only to two faculties of the mind, its imagination and sensibility.
Pagina 217 - if it be not affected, the reasoning is erroneous, because the end is not obtained; the effect itself being the test and the only test of the truth and efficacy of the means.
Pagina 217 - any principles falsely called rational, which we form to ourselves upon a supposition of what ought in reason to be the end or means of art, independent of the known first
Pagina 209 - Essays on American Silk and the best means of rendering it a source of individual and national wealth, with directions to farmers for raising silk worms; by John D'Homergue and Peter
Pagina 6 - WATERY VAPOR OF A BODY OF WARM AND HUMID AIR, BY ITS SUDDENLY MIXING WITH AN EXCEEDINGLY COLD WIND, IN THE HIGHER REGIONS OF THE ATMOSPHERE. Let us examine the effects which would result from the meeting of two opposite winds, at the height of ten thousand feet, during the heat of summer, the one blowing from
Pagina 381 - Fah. or above that point. Proceeding to an extension of the experiments to air of the natural density at different temperatures, I found that at about 60° F., Carbon, in the form of animal charcoal or of lampblack, causes the inflammation of a stick of phosphorus powdered with it: