CONTENTS. 



Page 



The Moon's Apogee, L. Euler 203 



On Comets, Richard Dunthorne 209 



On a Lunar Echpse, J. Short 220 



Observations in Gliina, Hallerstein ibid 



Horizontal Top, J. Short .' 229 



Astron. Observ. at Pekin, ITallerslein .... 238 



Eclipse predicted by Thales, Costard 310 



Zeiiophon's Eclipse, G. Costard 356' 



Transit of Mercury, J. Short 370 



Eclipse predicted by Thales, Stukely 380 



Astron. Obser\'. Bevis and Short 408 



Observations at Pekin, Gaubil +11,412 



Transit of Mercury, Sher\ inton 414 



On the same, by J. Short 426 



3. Pneumatics. 



On the Air-pump, J. Smeaton 247 Elasticity of the Air, M. Mazeas 



4. Optics, Alusic. 



Equinoxes, Nodes, &c. Silvabelle 



Age of Homer and Hesiod, Costard 



Observations on Mars, de L'Isle 



Eciipsareon, J. Ferguson 



Measuring a Ship's Way, Smeaton .... 



Eclipses at Lisbon, J. Chevalier 



Obsen'ations on the same, J. Short .... 



To take small Angles, J. Dollond 



Eclipses of Jupiter's Satellites, Chevalier , 



Advantage of Means, Simpson 



Astron. and Phys. Observ. Porter , 



A Lunar Eclipse, Barbosa 



Comet ex|)ected 1758, Tho. Barker . . . . , 



On the same Theorem, J. Dollond . . . 



On the same again, L. Euler 



Instrument for small Angles, Dollond . 

 Archimedes' Burning Mirrors, Parsons. 



Refrangibility of Light, Clairaut 



Microscopical Observations, Wright. . . 



5. Electricity, Magyietism, Pyrotecliny, Thermometry, &c. 



Improvement of Telescopes, Dollond .... 341 



Measure of small Angles, Dollond 36"4 



Gascoigne Inventor of Microscope, Bevis. . 369 



Refrangibility of Light, T. Melville 390 



Remarks on the same. J. Short 393 



Euler's Theorem for Aberrations, Short . . 401 



Electric.ll Experiments, Wm. Watson 12 



Italian Electricity, M. NoUet 20 



Mariner's Compass, Gowan Knight 64 



Improvements of the same, J. Smeaton . . 67 



Thermometer Observations, Stedman .... 126 



Artifici.il Magnets, J. Canton 131 



M.ignetic Variations, P Wargentin l65 



On Franklin's Electricity, Wm. Watson . . 189 



Winkler's Electrical Experiments, Watson 197 



Effects of Lightning, B. Franklin 212 



Medical Electricity, Wm. Watson 227, 242 



Electricity in Vacuo, Wm. Watson 233 



Analogy of Lightning and Electric. Mazeas 289 



Electricity from the Clouds, M. NoUet 295 



On the same subject, M. Mylius 298 



The Electrical Kite, B. Franklin 301 



Experiments on Thunder Clouds, Watson. . 303 



Therm. Obser\'. in Siberia, Watson 344 



On NoUet's Electricity, Watson 372 



Electrical Experiments, B. Wilson 



^ J. Canton 



Electricity of the Air, M. Mazeas 



On NoUet's Electricity, Dr. T. Birch . . 



New Pyrometer, &c. J. Smeaton 



Archimedes's Burning Mirrors, Parsons 

 Electrical Kite Experiment, Dr. Lining. . , 

 Death of Professor Richroan, Watson . . , 

 Electrical Experiments, J. H. Winkler. . , 

 , J. Canton 



Medical Electricity, Dr. C. Hart 



Variation Chart, Dodson and Mountain. . . . 



Effects of Lightning, Dr. Huxham 



Thermometer Observations, Dr. Miles. . . . 

 Death of Professor Richman of Petersburg 



Effects of Lightning, G. Brander 



Electrical Observations, B. Franklin 



Paralytic Arm cured by Electricity, Hart. . 



Class III. Natural History. 



I. Zoology. 



4 A small species of Wasp, J. Harrison . 

 Cluster Polype at Greenland, J. Ellis . 

 Pennsylvania Pheasant, Geo. Edwards . 



Charr-fish in Wales, Farrington 



Fishes at Aleppo, Dr. A. Russel 



A kind of Crocodile, Geo. Edwards . . , 



Dragon-fly of Pennsylvania, Bartram . . . 



Travels through Italy, Rob. More 52 



A Curious Fish, Dr. Mortimer 70 



The Cancer Major, P. CoUinson 134 



Phoca: Marinae, Dr. Parsons 161 



A very small Monkey, Dr. Parsons 171 



2. Botany 

 Catalogue of 50 Plants, Apothecaries, 7; 18; Vegetable Balls, Wm. Dixon 

 29; 176; 242; 345; 456; 579; 706. ~ ~ ~" "" '"" 



Of White Henbane, Dr. Stedman 185 



Remarks on the same, Wm. Watson .... 186 

 Bp. of London's Garden, Wm. Watson . . 200 



The Cinnamon Tree, Wm. Watson 2!7 



Aphyllon and Dentaria Hept. Watson .... 250 



The Flora Siberica, Wm. Watson 



Spondyl. Vulgare Hirsutum, Miller . . 

 The Vegetable Byssus, M. Bose . . . . 

 Remarks on the same, Wm. Watson 



The Sex of Holly, J. Marty n 



On the same subject, Wm. Watson. . 



Page 



436 



440 



455 



456 



ibid 



461 



ibid 



462 



567 



579 



6I8 



621 



645 



434 



402 

 403 

 462 

 488 

 530 

 698 



420 

 421 

 434 

 446 

 482 

 488 

 522 

 525 

 529 

 532 

 534 

 556 

 560 

 566 

 574 

 629 

 632 

 700 



182 

 409 

 450 

 609 



6Gr 



712 



280 

 351 

 355 

 425 

 ibid 

 486' 

 487 



