C ON TENTS.

French King's Mathematicians, 294, &c.'Their Method of measuring a Degree particu~larly described and illustrated, 296, 297The Method of determining the true Figure fthe Earth from thence , 298—303'

The Mathematical Theory thereof 298—301Tables of the Measures of a Quadrant al Archin the Sphere and Spheroid, 303—305Geographical Problems projeSled in Piano,

306

The Sphere projeSled orthographically, ibid.The Stereographical ProjeStion of the Sphere ,

307, 308

Mercator’s Projection explained , 309

Table of Meridional Parts invefiigated

Zro, 311

Sailing upon the Rumb-Line explained, 312Table of Meridional Parts for the Spheroid,by the Rev. Mr. Murdoch, 313—315

APPENDIX.

Of the Lunar Motions, &c.

/f^Eneral Theory of Attraction, 319—3 21^ The threefold Force of Attraction,

325, 326

Errors in Longitude and Latitude, 329Elliptic Figures the Orbit , 33°i 33 1

The Motion of the Lines Apsidum, ZZ2—34°