11 



CONTENTS. 



Page 

 P. Dollond, Improvement in Telescopes . . Ip* 

 Dr. W. Heberden, a Salt on the Peak of 



Teneriffe 195 



Ja. Ferguson, Time in a N" of Lunations, &c. 1 97 

 J. Michel], to survey with Hadley's Quad, ibid 

 J. B. Paitoni, Anatomical Observations . . 199 



Dr. Spry, on the Portable Barometer 201 



Mr. Woollcombe, on a Locked Jaw ibid 



Geo. Edwards, on a Chinese Pheasant .... 202 

 Apothecaries, Catalogue of 50 Plants, &c. 203 

 Dr. Wilkinson, Specif Levity and Grav. of 



Cork, Human Bodies, &c. in diff. Fluids 204 



Dr. Tissot, on the Ergot in Rye, &c 208 



Biog. Notice of Dr. Tissot, of Lausanne . . ibid 

 Dr.Tho. Heberden, Temp, at diflf. Heights 218 

 Dr. W. Heberden, Stone from a Woman's 



Bladder 219 



J. Liesganig, Astron. Observ. at Vienna . . 220 



Earl of Morton, Case of Hydrophobia 22 1 



Ed. Waring, Theorems on the Ellipse and 



Polygon 222 



Dr. H. Hamilton, onEvap., Air, water, &c. 223 

 Dr. Franklin, Phys. and Meteor. Observ. . ibid 



Ben. Gale, Inoculation in America 229 



W. Ludlam, New Balance for Thread, &c. 233 

 Dr. Brownrigg, on the Air in Spa Water . . 235 



Anonymous, Mineral Exhalations, &:c 244 



Ben. Gale, Salt to the Bite of Rattle Snakes ibid 

 Sir F. H. Eyles Stiles, New Microscopes at 



Naples, Obs. on the Human Blood, &c. 245 



, on the Sexes of Plants ... 248 



^— — , Impregnation of Vegetables 249 



Jos. Colebrooke, Effects of Green Hemlock 254 

 Mr. Griffith, Effects of Lightning at Oxford ibid 

 J. Ellis, Nature and Formation of Sponges 257 

 Dr. J. Hope, Introd. of the Rhubarb Plant 262 



M. Messier, on the Comet of l6'8-' 263 



Tho. Hornsby, Transit of Venus in 1 769 . . 265 

 M. Messier, Observation of a Solar Eclipse 274 



J. Swinton, Palmyrene Inscription 275 



M- Lulofs, Obs. of a Solar Eclipse at Leyden 276 

 Dr. Parsons, Rhinoceros Double Horns .... ibid 

 Wm. Borlase, Specimens of Native Tin . . 117 

 Ed. W.Montagu, Journ. from Cairo to Sinai 278 

 Biog. Notice of Edw. Wortley Montagu . . ibid 



M. Messier, on 2 New Comets 286 



Alex. Brice, on a New Comet 287 



H. Baker, on the Naples New Microscopes ibid 

 Fr. Mallet, Transit of Venus at Upsal .... 289 



Rob Smith, Hepatitis treated ibid 



Dr. A. 1-ee, on Peruvian Bark 290 



J. B- Beccaria, Electrical Experiments .... 291 

 Biog. Notice of John Baptist Beccaria .... ibid 

 J. Michetl, Meas. Degrees of Longitude . . ibid 

 Anonymous, on Ascarides, Taenia, &c. . . . 294 



Dr. Geo. Carlisle, on a large Hernia 295 



Hen. Cavendish, Exp. on Factitious Air . . 298 

 Dr. Wolfe, on the Polish Cochineal 320 



Page 

 Mr. Homrael. on the Jaculator Fish ..... 321 

 Dr. Pallas, another Species of the Jaculator 322 



J. Ellis, of an Amphibious Bipes ibid 



Dr. Parsons, on Amphibious Animals 324 



, Wind Pijjesof Birds and Tortoises 329 



David Ross, Magnetic Variations 336 



W. Mountayne, on the same Subject ibid 



Alex. Brice, Velocity of Wind, and Propor- 

 tion of Snow to Water 338 



W. Bowles, Emery Stone, andMines in Spain 340 

 T. Bergman, Electricity of the Tourmalin 343 



Fr. Mallet, Parallaxes of Altitude 344 



Apothecaries, Catalogue of 50 Plants 347 



M. Messier, Observation of a Solar Eclipse ibid 

 Prince de Croy, Observations on the same ibid 

 M. Le Cat, Extracting part of the Arm Bone 349 

 M. Wargentin, Longitude by Eclipses of 



Jupiter's Satellites 352 



J. Ellis, Coluber Cerastes, or Horned Viper 355 

 Alex. Rose, on the Weather at Quebec . . . .356 



J. Swinton, on 2 Parthian Coins 357 



Wm. Moreland, on the Hydrops Pectoris . . 358 

 Wm. Borlase, Discovery of Native Tin . . . 359 

 John Hunter, on an Amphibious Bipes .... 360 



Le Cat, a Monstrous Human Foetus 362 



J. Canning, Three Arabian Medicines .... 369 

 G. Witchell, Shadow of a Prolate Spheroid 372 

 Biog. Notice of Mr. George Witchell .... ibid 



Ed. King, on the Universal Deluge 379 



, Formation of Spars and Crystals 384 



Mr. Alexander, Exper. with Camphor .... 386 

 Ed. King, on a Remarkable Aquatic Insect 390 



Cha. Clarke, on the Patagonians 391 



Wm. Sharpe, Instrument for Fractured Legs ibid 

 Ed. Spry, a Locked Jaw cured by Electricity ibid 

 Hen. Cavendish, on Rathbone-place Waters 393 

 J. Swinton, on a Meteor seen at Oxford . . 401 



— , Swarm of Gnats seen atOxford 402 



G. D. Ehret, on the Plant Andrachne .... 403 

 Dr. Johnstone, a Foetus with Imperfect Brain 



and the Use of the Ganglions 404 



J. Winthrop, Thoughts on Comets 405 



J. Caverhill, Knowledge of the Ancients in 



India 4()S 



Dr. Horsley, on the Sun's Distance 4 1 i 



Biog. Notice of Dr. Samuel Horsley ibid 



C. L'Epinasse, Improved Elect. Apparatus 4l6 

 Wra. Hamilton, Eruption of Vesuvius ... 417 



Biog. Notice of Sir Wm. Hamilton ibid 



J. Howard, Heat of the Bath Waters .... 419 

 J. Canton, Heat of Bath and Bristol Waters 420 



D. Barrington, on certain Fish in Wales . . ibid 

 Biog. Notice of the Hon. Daines Barrington ibid 

 Ja. Cook, Observation of a Solar Eclipse . . 422 

 Fl. Martin, Heat of the Air at Bengal .... 423 

 Dr. Percival, Exp. on Peruvian Bark .... ibid 



J. Michell, Parallax of the Fixed Stars ibid 



, Twinkling of the Fixed Stars . . 438 



