The American Journal of Science and Arts, Volume 17S. Converse, 1830 - Geology |
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appears ascertained atmosphere beautiful beds calcareous carbon cause character chemical chemistry chlorine clay coal color common contains copper crystals curves Davy decomposed diameter east effect elevation equal experiments fact feet felspar fever formation fossil geological gneiss granite green sand greywacke ground heat hills hornblende hundred hydrogen inches iron iron pyrites Island Journal Lake less lignite lime limestone liquid magnetic malaria manganese marl mass mercury metallic miles mineral mines mountains muriatic acid nature nearly observed obtained oxide oxygen particle pectic acid peroxide petrifactions plate porphyry potash present pressure primitive produced Prof pyrites quantity quartz remains remarkable river salt sand sandstone Siberia side silver Sir Humphry slate solution species specimens stone strata stratum substance sulphate sulphuric acid surface tion Tobolsk trap rocks tube vapor vegetable wood XVII.-No
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Page 218 - Every man acquainted with the common principles of human action, will look with veneration on the writer, who is at one time combating Locke, and at another making a catechism for children in their fourth year. A voluntary descent from the dignity of science, is perhaps the hardest lesson that humility can teach.
Page 216 - I felt a sense of tangible extension highly pleasurable in every limb ; my visible impressions were dazzling and apparently magnified ; I heard, distinctly, every sound in the room, and was perfectly aware of my situation. By degrees, as the pleasurable sensations increased, I lost all connection with external things ; trains of vivid visible images rapidly passed through my mind, and were connected with words in such a manner, as to produce perceptions perfectly novel.
Page 271 - Dekay from a fragment, and will be found in the second volume of the " Annals of the New York Lyceum of Natural History ."{ By some unacountable mistake the description there given refers to the wrong figure in the accompanying plate : thus fig.
Page 216 - I walked round the room, perfectly regardless of what was said to me. As I recovered my former state of mind, I felt an inclination to communicate the discoveries I had made during the experiment. I endeavoured to recall the ideas : they were feeble and indistinct...
Page 216 - I lost all power of perceiving external things, and had no distinct sensation except a terrible oppression on the chest. During the third expiration, this feeling disappeared, I seemed sinking into annihilation, and had just power enough to drop the mouth-piece from my unclosed lips.
Page 216 - ... state of mind, I felt an inclination to communicate the discoveries I had made during the experiment. I endeavoured to recall the ideas, they were feeble and indistinct; one collection of terms, however, presented itself: and with the most intense belief and prophetic manner, I exclaimed to Dr. Kinglake, " Nothing exists but thoughts! — -the universe is composed of impressions, ideas, pleasures and pains...
Page 181 - ... rural districts. While the metropolis has extended itself in all directions, and multiplied its inhabitants to an enormous amount, — in other words, while the seeming sources of its unhealthiness have been largely augmented, it has actually become more friendly to health.
Page 237 - ... shown that chemical attractions may be exalted, modified, or destroyed, by changes in the electrical states of bodies ; that substances will only combine when they are in different electrical states; and that, by bringing a body, naturally positive, artificially into a negative state, its usual powers of combination are altogether destroyed...
Page 313 - ... precisely in the inverse ratio of the resistance occasioned by the population. The fewer inhabitants there are the more victims ; and one funeral is always the fore-runner of many others. It is, therefore, probable, that we are arrived at that period of the history of this queen of cities, which is destined to strip her of her splendour, and leave to her, of all her glory, nothing but her immortal...
Page 241 - To conclude, we look upon Sir Humphry Davy as having afforded a striking example of what the Romans called a man of good fortune ; — whose success, even in their view, was not however the result of accident, but of ingenuity and wisdom to devise plans, and of skill and industry to bring them to a successful issue. He was fortunate in his theories, fortunate in his discoveries, and fortunate in living in an age sufficiently enlightened to appreciate his merits; — unlike, in this last particular,...