11 



CONTENTS. 



Page 

 Watt, Comp. of Water and Deph. Air. 555, 569 



Waring, on the Summation of Series 586 



Cullum, Remarkable Frost in Summer .... 604 

 Watt, Test Liquor for Acids and Alkalis. . . <>05 

 Woodward, New Plant of the Fungi order. 607 



Six, on the Variation of Local Heat o'O.Q. 



Herschel, Construction of the Heavens. 6ll, 680 



Davidson, Bark Tree in St. Lucia 619 



Pigott, N. on the Meteor of Aug. 18, 1783. 620 



Pigott, Edw. on the Comet of 17S3 621 



Alchome, on Mixing Gold with Tin 622 



Galvez, on Directing Air Balloons 625 



Martineau, Dropsy of the Ovarium ibid 



Darwin, an Artificial Spring of Water .... 627 

 Lightfoot, an undescribed Bird 630 



Pa K c 



Biog. Notice of the Rev. John Lightfoot . . 630 



Anderson, a Mountain on St. Vincent's . . . 634 



Hope, on a Plant yielding Asafoetida 640 



Biog. Notice of Dr. John Hope ibid. 



Pigott, Edw. on a New Variable Star .... 64.9 



Zach, Astronomical Observations 651 



Goodricke, on a New Variable Star 653 



Vince, on the Friction of Bodies 654 



Morgan, Geo. the Light of Bodies in Com- 

 bustion 668 



Kirwan, Spec. Grav. at dif. Temperatures. . 696* 

 Morgan, Wra. Non-conducting Power of a 



Perfect Vacuum 699 



Priestley, Experiments on Air and Water. . 703 



Landen, on Rotatory Motion ibid. 



THE CONTENTS CLASSED UNDER GENERAL HEADS. 



Class I. Mathematics. 



1. Arithmetic, Annuities, Political Arithmetic. 

 Bills of Mortality at York White 177 Parish Registers of Holy Cross. . Gorsuch . . 183 



2. Algebra, Analysis, Fluxions, Series. 



Roots of Equations, E. Stanhope 86 The Equal Roots of Equations, Hellins . . . 317 



Roots of Affected Equations, .. Wales ... . 139 Variations of Curvature, . . Landerbeck 456, 627 

 Sums of Infinite Series, Vince 309, 638 Summation of Series, Waring. . . 586 



3. Geometry, Trigonometry, Land-surveying. 

 New Division of the Quadrant, Hutton. . . . 464 



Class II. Mechanical Philosophy. 



1. Dy 



namics. 



The Collision of Bodies, Smeaton . . 295 



Resistance of the Air, Edgeworth 36'2 



Friction of Bodies, Vince . 



Rotatory Motion Landen 



654 



703 



1. Astronomy, Chronology, Navigation. 



Nebula in Coma Berenices,. . . . Ed. Pigott 37 



On sonic Double Stars, N. Pigott 38 



Rotation of the Earth and Planets, Herschel 50 



Astronomical Observations, . . N. Pigott 117 



Mensuration of Angles Atwood .. 133 



Discovery of the New Planet, Herschel.. 154 



Microra for Angle of Position, Herschel.. 155 



Longit. ol Cambr. in America, Willard .. 156 



Parallax ol the Stars Herschel. . 196 



Catalogue of Double Stars .. Herschel 213,642 



New Lamp Micrometer .Herschel.. 229 



Great Powers of his Telescopes, Herschel. . 234 



Name of his New Planet, .... Herschel . . 324 



Diameter and Mag of the same, Herschel . . 325 



On the Solar Spots, A. Wilson 366 



Motion of the Solar System, ..Herschel.. 3^7 

 Variation of the Star Algol, Goodricke 456', 514 



On the same subject, Englefield 460 



On the same Palitch. . . . ibid. 



On a i\e\\ Comet, F, Pigott . . 464 



Distance and Mag. of the Stars, Michell . . 46'5 



Astrononuc.il Observations .... Wollaston. . 5 16 



The Polar Region.-, ot Mars, .-.Herschel.. 531 



Transit of Mercury, Walloi 553 



