The Philadelphia Medical and Physical Journal, Volumen3

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J. Conrad & Company, 1808
 

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Página 178 - States entitled an act for the encouragement of learning hy securing the copies of maps, charts and books to the author., and proprietors of such copies during the times therein mentioned, and also to an act entitled an act supplementary to an act, entitled an act for the encouragement of learning by securing the copies of maps, charts and books to the authors and proprietors of such copies during the times therein mentioned and extending the benefits thereof to the arts of designing, engraving and...
Página 178 - An act supplementary to an act, entitled, " An act for the encouragement of learning, by securing the copies of maps, charts,' and books, to the authors and proprietors of such copies during the times therein mentioned," and extending the benefits thereof to the arts of designing, engraving, and etching historical and other prints.
Página 182 - IDE, of the said District, hath deposited in this office, the title of a book, the right whereof he claims as proprietor, in the words following, to wit : " Inductive Grammar, designed for beginners. By an Instructer." In conformity to the act of the Congress of the United States...
Página 178 - District, has deposited in this office the title of a book, the right whereof he claims as proprietor, in the words following, to wit : " THE CHILD'S BOTANY," In conformity to the act of the Congress of the United States, entitled, " An act for the encouragement of learning by securing the copies of maps, charts, and books to the authors and proprietors of such copies, during the times therein mentioned...
Página 123 - The head was covered with a dry skin ; one of the ears, well preserved, was furnished with a tuft of hairs.
Página 42 - ... protracted into what is called in military language, a running fire. This noise continued about as long as the body was in rising, and died away apparently in the direction from which the meteor came.
Página 42 - They succeeded each other with as much rapidity as was consistent with distinctness, and, all together, did not occupy three seconds. Then followed a rapid succession of reports less loud, and running into each other, so as to produce a continued rumbling, like that of a cannon ball rolling over a floor, sometimes louder and at other times fainter ; some compared it to the noise of a...
Página 50 - Of smaller pieces we have a good collection. They possess every variety of form, which might be supposed to arise from fracture with violent force. On many of them, and chiefly on the large specimens, may be distinctly perceived portions of the external part of the meteor. It is every where covered with a thin black crust, destitute of splendor, and bounded by portions of the large irregular curve, which seems to have inclosed the meteoric mass.
Página 50 - From the best information which we could obtain of the quantity of fragments of this last stone, compared with its specific gravity, we concluded that its weight could not have fallen much short of 200 pounds. All the stones, when first found, were friable, being easily broken between the fingers ; this was especially the case, where they had been buried in the moist earth ; but by exposure to the air, they gradually hardened.
Página 44 - The largest fragment which remained did not exceed the size of a goose egg, and this Mr. Burr found to be still warm to his hand. There was reason. to conclude from all the circumstances, that this stone must have weighed about twenty or twenty-five pounds. Mr. Burr had a strong impression that another stone fell in an adjoining field, and it was confidently believed that a large mass had fallen into a neighboring swamp, but neither of these had been found.

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