Summarized Proceedings ... and a Directory of Members

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Seite 362 - Cambridge, public schools, and grammar schools in the towns; to encourage private societies and public institutions, rewards and immunities, for the promotion of agriculture, arts, sciences, commerce, trades, manufactures, and a natural history of the country; to countenance and inculcate the principles of humanity and general benevolence, public and private charity, industry and frugality, honesty and punctuality in their dealings; sincerity, good humor, and all social affections, and generous sentiments...
Seite 26 - If the iron be blunt, and he do not whet the edge, then must he put to more strength: but wisdom is profitable to direct.
Seite xv - The objects of the Association are, by periodical and migratory meetings, to promote intercourse between those who are cultivating science In different parts of America, to give a stronger and more general impulse and more systematic direction to scientific research, and to procure for the labors of scientific men increased facilities and a wider usefulness.
Seite 283 - ... in a direction contrary to the motion of the hands of a watch, with — and be this particularly noted — a constant tendency to turn inwards towards the centre of lowest barometer.
Seite 247 - Dolomites, magnesites, and magnesian marls have had their origin in sediments of magnesian carbonate formed by the evaporation of solutions of bicarbonate of magnesia. These solutions have been produced either by the action of bicarbonate of lime upon solutions of sulphate of magnesia, in which case gypsum is a subsidiary product, or by...
Seite 142 - Bache. The government of the United States has acquired a new right to our gratitude by protecting nobly that which has arrested the attention of the hydrographers and astronomers of Europe. I should be glad to think...
Seite 298 - NR 17 E., about twenty miles north of the Oconto river, the summits of the country being ~335 feet above Lake Michigan, and 913 feet above the ocean. Those on the dividing ridge between the waters of the west branch of the Oconto and the Wolf rivers, in T. 32 NR 15 E., are at an elevation of 350 to 400 feet, and afford the finest instances of steep and well-defined cavities. While exploring that district in 1849, it occurred to me that these cavities could not be explained by the usual and well-known...
Seite 282 - ... 5. Great storms of rain and snow are accompanied by a depression of the barometer near the centre of the storm, and a rise of the barometer near the margin; but this rise is not generally uniform along the entire margin. 6. The depression of the barometer at the centre of a storm sometimes amounts to more than an inch below the mean height; and the rise along some portion of the margin sometimes amounts to more than an inch above the mean height. 7. Winter storms commence gradually, and generally...
Seite 282 - 3. Violent storms sometimes remain sensibly stationary for four or five days ; but generally the centre of a storm has a progressive movement along the earth's surface. The rate of this progress has been observed to vary from zero to 44 miles per hour.
Seite 247 - Dolomites, magnesites, and magnesian marls, have had their origin in sediments of magnesian carbonate formed by the evaporation of solutions of bicarbonate of magnesia. These solutions have been produced by the action of bicarbonate of lime upon solutions of sulphate of magnesia, in which case gypsum is a subsidiary product ; or by the decomposition of solutions of sulphate or chlorid of magnesium by the waters of rivers or springs containing bicarbonate of soda.

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