Transactions of the American Philosophical Society, Band 2American Philosophical Society, 1786 Held at Philadelphia for promoting useful knowledge. |
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afcend againſt alfo alſo anſwer appearance atmoſphere Barometer becauſe Behem body cafe cauſe chimney Clear 30 Clear Clear Clear cloſe Cloudy Clear coals cocons confequence confiderable courſe DAVID RITTENHOUSE defcend diſcharge diſcovered diſcovery diſtance Ditto electric experiment faid fame fecond feems feen feveral fhall fhews fhowers fide filk fince fire firft firſt fituation fixed flame fluid fmall fmoke fome fometimes fouth fpring freſh ftate ftrong fubftance fubject fuch fufficient funnel fuppofe furface furrounding glaſs greateſt heat houſe inches increaſed inftrument iſland itſelf laſt leaſt lefs moſt motion muſt neceffary obfervations occafioned paffage paffing perfons plate pleaſant day pofition prefent preffure purpoſe quantity quill rain reaſon reſpect rife riſe ſeems ſeveral ſhall ſhip ſhould ſmall ſmoke ſome ſpace ſpout ſtate SW Clear Tetanus thefe themſelves Thermometer theſe thofe thoſe thunder tube uſe vafe vapors veffel viſible warm weather weft wind
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Seite 21 - You physicians have of late happily discovered, after a contrary opinion had prevailed some ages, that fresh and cool air does good to persons in the smallpox and other fevers. It is to be hoped, that in another century or two we may all find out, that it is not bad even for people in health.
Seite 21 - ... some are as much afraid of fresh air as persons in the hydrophobia are of fresh water. I myself had formerly this prejudice, this aerophobia, as I now account it ; and, dreading the supposed dangerous effects of cool air, I considered it as an enemy, and closed with extreme care every crevice in the rooms I inhabited. Experience has convinced me of my error. I now look upon fresh air as a friend ; I even sleep with an open window.
Seite 16 - Fig. 4), which is common, as being there, when open, more out of the way, it follows that, when the door is only opened in part, a current of air...
Seite 68 - Obferve when frefh coals are firft put on your fire, what a body of fmoke arifes. This fmoke is for a long time too cold to take flame. If you then plunge a burning candle into it, the candle inftead of inflaming the fmoke will inI 2 ftantly ftantly be itfelf extinguifhed.
Seite 17 - ... to ascend the funnels as the cool of the evening comes on, and this current will continue till perhaps nine or ten o'clock the next morning, when it begins to...
Seite 275 - Portugal, to procure the means of undertaking a great expedition towards the southwest. This prince gave him some ships with which he discovered that part of America which is now called Brazil ; and he even sailed' to the straits of Magellan, or to the country of some savage tribes, whom he called Patagonians, from the extremities of their bodies being covered with a skin more like a bear's paws than human hands and feet. This fact is proved by authentic records, preserved in the archives of Nuremberg.
Seite 320 - I happened to be consulted on the occasion; and it appearing strange to me, that there should be such a difference between two places scarce a day's run asunder, especially when the merchant ships are generally deeper laden, and more weakly manned than the packets, and had from London the whole length of the river and channel to run before they left the land of England, while the packets had only to go from Falmouth, I could not but think the fact misunderstood or misrepresented.
Seite 64 - ... one of the upright corner funnels behind the niche, through which it ascends into the chimney, thus heating that half of the box and that side of the niche. The other part of the divided flame passes...
Seite 183 - The upper part is like an arched roof, of folid lime-ftone rock, perhaps twenty feet thick. On entering, are found many apartments, fome of them very high, like the choir of a church. There is, as it .were, a continual rain within the cave, for the water drops...