The CONTENTS. xxlii

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equator to which the sun is ver-tical at that time 195

Of the natural agreement between the celestialand terrestrial spheres ; or, How to gain aperfect idea of the situation and distance ofall places upon the earth by the fun and stars 199Prob. XLVI. To find the solar correspondenceto a fixed point upon the earth,when the fun is seen by an ob-server situated upon any otherpoint of its surface 202

Of the celestial correspondents 210

Of the passage or transit of the first point ofAries over the meridian 2x2

Prob. XLVII. To find the time of the rightascension of the first point ofAries upon any meridian 218

The use of the tables of right ascension 219

XLVIII. To find the time of the right ascen-sion of any star upon any par-ticular meridian on any day inthe year 224

Prob, XLIX. To rectify the celestial globe forany time in the evening of anyday in the year by the know-ledge of the time when the firstpoint of Aries shall pass the me-ridian that day 226

The correspondency of the fixed stars 229

Prob. L. To find all those places to which any

star is a correspondent 230

A general description of the passage of the star yin the head of the constellation Draco, overthe parallel of London 232

[ b 4 ] Prob.