vi 



CONTENTS. 



Class II. Mechanical Philosophy. 

 1 . Dynamics. 



Page 



Vibration of Pendulums, Derham 6o 



On Jurin'» De Vi Motrice, Earaes 46l 



Page 



Pendulums affected by Centrifugal Force, 

 Poleni 627 



2. Statics. 

 Statical Experiments, Desaguliers 139 Weights and Measures, Wm. Barlow 



3. Astronomy, Navigation, Chronology. 



432 



Eclipses of Jupiter's Satellites, Ja. Hodgson 



. 1, 54, 84, 141, 235 



_ — , Geo. Lynn 58 



Astronomical Observations, Weidler . . 68, 76" 



Solar Eclipse, Celsius and Revillas 82 



On a Lunar Eclipse, Weidler 96 



Horizontal Moon, Desaguliers 105, 106 



Horizontal Sun and Moon, Ja. Logan .... 112 

 Lunar Eclipse, Graham, Halley, Celsius.. Il6 



On the same. Dr. Bevis 117 



. , John Milner 118 



Occultation of Aldebaran, Dr. Bevis 147 



Lunar Eclipse, Bevis, Weidler, Middleton 147 



On a Solar Eclipse, Dr. Bevis 148 



Occultation of Mars, Bevis, Graham ibid 



Transit of Mercury, Geo. Graham ibid 



, Manfredi and Weidler 149 



Comet of 1737, Ja. Bradley ibid 



. , by Revillas at Rome 153 



, and Solar Eclipse, Kearsley ibid 



, Fuller and Sartori 154 



. — , G. R. Vanbrugh 155 



Solar Eclipse, Graham, Bevis, Maclaurin i6"9 



, Sir J. Clerk 175 



-, Revillas, Weidler, &c 176 



New Celestial Globe, Dr. E. Latham ibid 



____^ , John Senex 176" 



Solution of Kepler's Problem, J. Machin . . 177 



Figure of the Planets, Clairaut 207 



Occult, of Mercury by Venus, Bevis 251 



New Azimuth Compass, Middleton ibid 



Davis's Quadrant, Leigh 260, 262 



Solar Eclipse, Graham, Short, Celsias, 



Weidler, Manfredi 306 



Occulta, of Aldebaran, Kirch, Weidler .... 358 



On a Solar Eclipse, Weidler 359 



On the Lunar Atmosphere, Fouchy 371 



Impossib. of Vortices, De Sigorne 424 



On the Planet Mars, Chr. Kirch 457 



Conjunc. of Venus and Mercury, Bevis . . . 470 



Occulta, of Aldebaran, G.Graham ibid 



Solar and Lunar Eclipse, Ja. Short ibid 



On the Satellite of Venus, Ja. Short 476 



Occulta, of Jupiter, Bevis and Short 477 



The Ancient Sphere, Dr. E. Latham 50t 



Machine for Solar Eclipses, Segner 510 



Mend. Parts on a Spheroid, Maclaurin .... 515 



Parabolic Orbit of a Comet, Zanotti ibid 



Lunar Eclipse, Cap. Edward Legge 548 



The Ancient Sphere, Dr. Eb. Latham .... 607 



Transit of Mercury, J. Catlyn 6l3 



Astron. Observ. at Pekin, Hodgson 628 



A Comet observed at Vienna, Frantz 68 1 



Transit of Mercury, J. Winthrop 713 



A Lunar Eclipse, J. Winthrop ibid 



Transit of Mercury, Geo. Graham 714 



A Lunar Eclipse, Geo. Graham 715 



Saturn's Ring, G. Heinsius 722 



Transit of Mercury, Dr. Bevis 725 



4. Projectiles, Gunnery. 

 Experiments in Gunnery, Committee 598 Account of Robins's Gunnery, Robins 6^7 



5. Mechanics. 

 Influence of two Clocks on each other, J. Ellicott 320, 322 



6. Hydraulics. 

 On Effluent Water, Dr. Jurin 278, 298 



7. Pneumatics. 

 VentUating Close Rooms, Desaguliers 12, 13, 15 Trade Winds, Geo. Hadlcy .'. 



19 



