CONTENTS. 



Pnne 

 J. M. Molir, Transits of Venus and Mercury. 1 SO 

 Dr. Pemberton, Moon's Paral. and Eclipses. 181 

 Wm. Jones, on Computing Logarithms. ... l^O 



M. Raper, Greek and Roman Money 1 93 



N. Maskelyne, Micrometer Measurements. 20 1 

 S. Horsley, Newtonian Theory of Light. . . '.'10 



Fr. WoUaston, Going of his Clock 215 



Dr. D. Monro, Pure Native Natron 216" 



Tho. Homsby, Sun's Parallax determined. 220 



R. E. Raspe, Basalt Hills in Hessia , 222 



H. Cavendish, Phenomena of Electricity. . 223 

 Ja. Badenach, Uncommon Malacca Bird. . . 267 

 D. Barrington, on the Hare and Rabbit. . . . '267 

 Dr. D. Monro, Mineral Waters in Scotland. S7 1 

 Geo. Witchell, Astronomical Observations. 2/6 



T. Barker, Meteorological Register 277 



Dr. Bradley, Use of the Micrometer 277 



J. R. Forster, Hudson's Bay Dying Roots. . 282 



J. Swinton, Plietoriaa Denarius, &c 283 



Mr. Euler, jun. Sun's Parallax determined. 284 

 Capt. C. Newland, Chart and Voyage of 



tlie Red Sea 2S6 



, Voy. to Judda and Mocha. 2h7 



■■ , to Distil fresh 'Water from 



Salt '.'89 



, White Spots in the Sea. '^90 



N. Maskelyne, on the Hadley's Quadrant. . 292 



J. Walker, Irruption of Solway Moss 304 



' J. Z. Holwell, New Species of Oak 306 



Wm. Henley, Effects of Lightning at Tot- 

 tenham-Court-Road Chapel 307 



Tho. Ronayne, Atmospherical Electricity. . 310 



Dr. Priestley, Observations on Airs 313 



S. Horsley, on the Sieve of Eratostlienes. . . 314 

 C. Gullet, Use of Elder, in preserv. Plants. 319 



J. Call, on the Indian Zodiac 321 



Capt. Cook, Tides in the South Sea 323 



Wm. Henley, on a New Electrometer, &c. 323 

 Dr. Borlase, Meteorological Observations. . 3'J5 

 J. B- Forster, on Hudson' s-Bay Quadrujieds. 326 



— , on Hudson' s-Bay Birds 331 



Dr. Pemberton, Celebrated Astron. Prob. . . 348 

 J. Hvinter, Diges. of tlie Stom. after Death. 354 

 Biographical Notice of Mr. John Hunter. . 35+ 

 Dr. Percival, Buxton and Matlock Waters. . 355 

 Biographical Notice of Dr. Tho. Percival. . 3.>5 

 Dr. Collignon, on a Body long preserved. . 356 

 Dr. Pulteney, Effects of a Poisonous Plant. . 357 

 Edw. Naime, Experts, on Dipping Needles. 360 



H. Jackson, on making Isinglass 36 1 



Biographical Notice of Mr H Jackson. . . . 362 



A. Walker, on Dunmore Cavern 36s 



Dr. Morris, Specimens of Native I^ad 369 



J. Swinton, on an Ancient Denarius 370 



Apothecaries Co. Catalogue of 50 Plants. . . 370 

 E. Kinnersley, Electr. Experts, on Charcoal. 370 

 Dr. R. Watson, Theometrical Experiments. 37 1 

 R. Society, Purfleet Pow der Magazines. . . 37 ! 



B. Wilson, to Secure Buildings fr. Lightning. 374 



Pag« 



R. Society, on the same subject 382 



F. Wollaston, Astronomical Observations. . 382 



Dr. Ducarel, on Cultivating Botany 383 



J. H. Van Swinden, Int. Cold at Francker. 386 

 T. Homsby, Motion of Arcturus and Ob- 

 liquity of the Ecliptic 3S6 



M. Mustel, Observations on Vegetation. . . 399 

 Dr. Higgins, Detonation of Tin Foil, Sec. . 404 

 Sir Wm. Johnson, on tlie American Indians. 406 



J. R. Forster, on Hudson's-Bay Fishes 410 



Dr. Witliering, Marl of Staffordshire 414 



P. Brydone, Fiery Meteor and Elec. Exper. 4 1 5 

 D. Barrington, a Fossil near Christ Church. 418 



P.J. Bergius, Rare American Plant 419 



Dr. Kirkshaw, Effects of Lightning 420 



P. Panton, Population of Anglesey 421 



J. S, Baily, on Jupiter's Satellites- 422 



Biographical Notice of J. Sylvain Bailly. . . . 42'^ 

 S. Horsley, Notes on Jupiter's Satellites. . . 430 



W. Barnard, Explosion in a Coalpit 432 



T. Barker, Meteorological Register 432 



D. Barrington, on the Ptarmigan 433 



Edward King, Effects of Lightning 435 



, on a Sparry Incrustation 439 



D. Barrington, on tlie Singing of Birds. . . . 442 

 S. Douglas, Tokay and other Hungarian wines 451 

 Wm. Hewson, Red Particles of the Blood. 455 

 Sir W. Hamilton, Thunder Storm at Naples 455 



Dr. Nootli, on the Electrical Machine 450 



William Jones, on the Conic Sections 458 



M. Dicquemare, on Sea Anemonies 46O 



J. A De Luc, on a New Hygrometer 468 



J. Walsh. Electricity of the Torpedo 469 



J. Hunter, Anat. of the Torpedo 478 



Dr. Wilson, on the Solar Spots 482 



L. Cipolla, Astron. Observ. at Pekin 49' 



J. Blake, Lunar Eclipse at Canton 493 



James Clegg, Experts, on Dying Black. . . . 493 

 Dr. Percival, Population of Manchester 496 659 



Dr. Haygarth, Population of Chester 496" 



Edward Naime, Electrical Experiments. . . 498 

 Dr. Priestley, Effluvia of Putrid Marshes. . 502 



Dr. Price, on the same subject 305 



Lieutenant-Col. Ironside, Hindostan Paj)er 



and Sun Plant 506 



Dr. Wilson, Cross Wires of Telescojies. . . . 507 

 S. F. Simmons, Voiding Stones by a Fistula. 507 

 J. Varelaz, Disparition of Saturn's Ring. . . . 509 



D. Barrington, on the Gillaroo Trout 509 



H. Watson, Stomach of the same 510 



Dr. Dobson, on a Petrified Stratum 510 



Mr. Winn, on the Aurora Borealis 512 



W. Henley, Pointedand Blunted Conductors. 5 1 2 

 Dr. Winthrop, Castillione on Sir I. Newton. 518 

 Dr. Maskelyne, De Luc's rule for Heights 



by the Barometer 520 



S. Holland, Eclipses of Jupiter's Satellites. 526 

 Geo. Sproule, Obser\'ations of tlie same. . . . ibid 

 S. Holland, Astronomical Observations, . . . 527 



