Philosophical essays on the following subjects : I. On the principles of mechanics. II On the ascent of vapours, the formation of clouds, rain and dew, and on several other phaenomena of air and water. III. Observations and conjectures on the nature of the Aurora Borealis, and the tails of comets (1766)

Hamilton, Hugh, 1729-1805, Adams, John, 1735-1826, former owner. BRL, Adams, Charles Francis, 1807-1886, former owner. BRL, Boston Public Library) John Adams Library BRL · Dublin : Printed by W. Sleater ... · leaf 104

An illustration from Philosophical essays on the following subjects : I. On the principles of mechanics. II On the ascent of vapours, the formation of clouds, rain and dew, and on several other phaenomena of air and water. III. Observations and conjectures on the nature of the Aurora Borealis, and the tails of comets, 1766, leaf 104 — bBSERVATIONS AND CO NJECTURES, ^c. A VI N G obferved that foTne late Writers, who endeavour to revive the exploded Hypothefis of an uni- verfal Plenum^ bring Arguments in favour of their Opinion from what Sir Ifaac Newton fiys of the Afcent of Comets Tails in a Direction oppofite to the Si;n ; I… … ( 92 ) factory to me; tho I agree intirely with him thatthis Phaenomenon affords a fufficient Proof of aVacuum in the Celeftial Regions. As this is a Sub-ject of fome Importance in Phyficks I (ball, in thefollowing Eflay, firft, mention fuch Objedions asoccur to me againfl: Sir Ifaac^ Opinion as to…

Physics · Mechanics · Vapors · Meteorology · Comets

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