The American Journal of Science and Arts, Volumes 105-106S. Converse., 1873 |
Contents
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Common terms and phrases
acid appears atoms basin Bay of Fundy beds botanical cañon carbon Carboniferous character chlorine coast color containing corundum Cretaceous crust Crustacea crystals deposits depth described Devonian diameter Dinocerata direction dolerite dredging earth's east elevation elongation evidence experiments fact fathoms feet formation fossils galvanometer genus geological geosynclinal glacial glacier gneiss grams granite heat inch iron Journal Lake lateral layers limestone lines lower magnetic mass metamorphism meteors mica miles mineral mountain nearly observed obtained oceanic oxide Paleozoic plates plication portion precipitate present pressure probably produced Prof quartzite region ridge river rocks S. I. Smith salt sandstone schist sediments seen side Silurian slate slope solution species specimens spectrum strata subsidence sulphuric sulphuric acid surface synclinal temperature thickness tion Tom Ball tube upper valley velocity Yale College
Popular passages
Page 482 - Analysis, as applied to the Examination of Medicinal Chemicals and their Preparations. Being a Guide for the Determination of their Identity and Quality, and for the Detection of Impurities and Adulterations. For the. use of Pharmacists, Physicians, Druggists and Manufacturing Chemists, and Pharmaceutical and Medical Students.
Page xxvii - Tables and Results of the Precipitation, in Rain and Snow, in the United States, and at some stations in adjacent parts of North America, and in Central and South America.
Page 73 - When, the same muscle (or group of muscles) is kept in constant action until fatigue sets in, the total work done multiplied by the rate of work it constant.
Page 411 - Mitchill and Dr. Hosack were professors of scientific repute; he took his medical degree in 1818; opened an office in his native city, and engaged in the practice of medicine with moderate success, turning the while his abundant leisure to scientific pursuits, especially to botany. In 1817, while yet a medical student, he reported to the Lyceum of Natural History — of which he was one of the founders — his Catalogue of the Plants growing spontaneously within thirty miles of the city of New York...
Page 3 - Muscorum," however, is Mr. Sullivant's crowning work. It consists, as the title indicates, of " Figures and Descriptions of most of those Mosses peculiar to Eastern North America which have not been heretofore figured," and forms an imperial octavo volume, with one hundred and twenty-nine copperplates, published in 1864.
Page 299 - To ensure that temperature was in no way affecting the experiments, one of the bars was placed in a trough of water so that there was about an inch of water for the light to pass through, but the results were the same ; and when a strong light from the ignition of a narrow band of magnesium was held about nine inches above the water the resistance immediately fell more than two-thirds, returning to its normal condition immediately the light was extinguished.
Page 234 - ... spark passes. Photographs of the spark, taken in air between zinc and cadmium and zinc and tin, accompany the paper, showing that when spectra of the vapours given off by electrodes are studied in this manner, the vapours close to the electrode give lines which disappear from the spectrum of the vapour at a greater distance from the electrode, so that there appear to be long and short lines in the spectrum. The following elements have been mapped on this method : — Na, Li, Mg, Al, Mn, Co, Ni,...
Page 67 - ... and weather-stains as if dug from the mountain that very day. When I had scrambled to the top of the moraine, I saw what seemed to be a huge snow-bank, four or five hundred yards in length, by half a mile in width. Imbedded in its stained and furrowed surface were stones and dirt like that of which the moraine was built. Dirt-stained lines curved across the snow-bank from side to side, and when I observed that these curved lines coincided with the curved moraine, and that the stones and dirt...
Page 178 - Notes on the Corundum of North Carolina, Georgia, and Montana, with a description of the Gem variety of the Corundum from these localities ; by J.
Page xxvii - RESULTS of a Series of METEOROLOGICAL OBSERVATIONS made under instructions from the Regents of the University at sundry Stations in the State of New York.