CONTENTS. 



Ul 



Dr. Maskelyne, Eclipses of Jup. Sat 527, 528 



H. Marshall, on the Solar Spou 52y 



G. White, on the House-Martin ibid 



T. Baiker, Meteorological Register 330 



J. Hunter, on Air- Vessels in Birds ibid 



S. Horsley, De Luc's Rules for Heights, &c. ibid 

 Wm. Curtis, Catalogue of 50 Plants, &c. . ibid 



J. Hunter, on the Gillaroo Trout ibid 



J. Swinton, Monagrani on a Quinarius .... ibid 

 F. Wollaston, Astronomical Observations . . 532 

 B. Wilnier, on a Woman burnt to Death. . 534 

 Dr. Darwin, Animal Fluids in the Receiver. 530" 

 Mr. Nicholson, a Storm of Lightning .... 538 

 Jas. Bent, use of an Arm after cutting off the 



head of the Os Humeri 539 



Dr. Brownrigg, Air in tlie Pouhon Water. . 441 



Lt. Curtis, the Labradore Country 547 



Wm. Henley, Electrical Experiments .... 551 



Da. Macbride, Reviviscence of Snails 565 



J. Aikin, Population of Warrington 567 



Dr. Franklin, Stilling of Waves by Oil 568 



M. Stehlin, Northern Archipelago, and a 



Specimen of Native Iron 569 



J. Walsh, Torpedos of the English coast . . 570 

 Dr. Purcell, double Uterus and Vagina .... 572 

 Dr. Brownrigg, specimens of Native Salts. . 575 

 Dr. Ingenhousz, Expers. on the Torpedo, ibid 

 Biograph. Notice of Dr. John Ingenhousz. . ibid 



J. Strange, on B.isaltine Columns 5/7 



H. Norris, English Weights and Measures. 582 

 Dr. Nooth, Impreg. Water with Fixed Air. 587 

 Jos. Steele, South- Sea Musical Instruments 591 



J. Lorimer, a new Dipping Needle 593 



Dr. Haygartli, Population of Chester 594 



P. Woulfe, a New Colouring Substance. . . . 595 

 Dr. H. Williamson, on the Elecaical Eel. . 597 



Dr. Garden, on the same 600 



Dr. Blagden, Expts. in a Heated Room. . . . 6i)4 



Dr. Black, on Freezing Boiled Water 6 1 



Biographical Notice of Dr. Joseph Black. . ibid 

 Tho. Hutchins, on the Dipping Needle ... . 6l3 

 Royal Society, Meteorological Journal .... 6l5 

 Dr. Horsley, on the Weather at London . . 6 1 6" 



Pift 



Dr. Farr, Meteorological Register at Bristol. . 6'29 

 T. Barker, Meteorol. Register at Lyndon. . 6.31 

 Sir R. Barker, Thermom. Obs. in India. . . . ibid 



M. Dicquemare, on Sea Anemonies 6"33 



M. Shuidham, on tlie Sea Cow 6"43 



Sir R. Barker, to make Ice in India ibid 



G. White, on Swallows, Swifts, &c 645 



J. Whitehurst, on a Water Machine ibid 



Mr. Lexel, Occultats. and Geomet. Theor. 646 



J. Landen, on the Hyperbolic Arc 647 



F. Wollaston, Astronomical Observations . . 650 

 Dr. Stedman, Triangles in and about Circles. 651 

 Dr. Horsley, Polygons in and about Circles. 653 



Dr. Cooper, on an Acephalous Birtli 654 



Mr Henley, Effects of Lightning 659 



Ja. Cornish, Torpidity of Swallows, &c. . 660 



Dr. Lind, a Portable Wind-Gage 66l 



Mr. Ludlam, Astronomical Observations . . 665 

 B. Gooch, Amputation above the Knee. . . . 666 



, Aneurysms in the Thigh ibid 



Dr. Priestley, further Discoveries in Air. . . . ibid 

 J. Hunter, on the Gyranotus Electricus. . . . ibid 



Ja Bruce, on Abyssinian Myrrh 672 



Biograph. Notice of Jas Bruce, Esq ibid 



J. Strange, a Giants Causeway in Italy. . . . 677 

 Dr. Price, Duration of Life in Towns and 



the Country 67B 



J. Hunter, Power of Animals and Vegetables 



to produce Heat 6'8S 



Dr. Roebuck, Heat at London and Edinb. ibid 

 Bic^raph. Notice of Dr. John Roebuck. . . . ibid 

 Dr. Dobson, Experts, in a Heated Room . . 687 

 1st. Lyons, Calcid. in Spherical Trigonom. . 69O 

 Dr. Blagden, Experts, in a Heated Room . . 695 

 Dr. Maskelyne, Proposal for Measuring the 



Attraction of Hills 700 



, Observations for the Attrac- 

 tion of Mount Schehallien 702 



J. Ellis, Nature of the Gorgonia 720 



Robt. Douglass, Magnetic Variations 729 



Jas. Glenie, Geometrical Propositions .... ibid 

 Alex. Aubert, to find Time by equal Alti- 

 tudes 734 



THE CONTENTS CLASSED UNDER GENERAL HEADS. 



Class I. Mathematics. 



1 . .Arithmetic, Annuities, Political Arithmetic, 



Reversions and Survivorships . Price 50 Population of Manchester, .... Percival. . . 496 



Compound Interest Robertson. . 83 Population of Chester, Haygarth . . ibid 



Population of Holy Cross .... Gorsuch ... 94 Population of Warrington, .... Aikin 567 



Computing Logarithms, Jones 19O Population of Chester, ..... Haygarth . . 594 



Sieve of Eratosthenes, Horsley . . 314 Population of Manchester, .... Percival . ^ 659 



Population of Anglesey, Panton .... 421 Dura, of Life in Towns & Country, Price . . 678 



Sil 



