102 PHILOSOPHICAL TRANSACTIONS. [aNNO 17'25. 



moon's diameters; configurations and elongations of Jupiter's satellites from 

 him, small distances of fixed stars, with appulses of the moon and planets to 

 them, observed with a telescope and micrometer at Derby, by Mr. Flamsteed, 

 between the years 1670 and 1675; with the larger intermutual distances of fixed 

 stars, and of the planets from them; eclipses of the sun, moon, and Jupiter's 

 satellites, spots on the sun, comets and refractions, taken with a sextant of 

 near 7 feet radius, a voluble quadrant, and the abovementioned instruments, 

 between the years 1675 and 1689, at his majesty's observatory, disposed under 

 proper heads, with the places of the tnoon, Saturn, Jupiter, Mars, Venus, and 

 Mercury, deduced from the observations, and also necessary tables to be used 

 with them. 



The second volume contains his observations, made with a mural arch of 

 near ^ feet radius, and 140 degrees on the limb of the meridional zenith dis- 

 tances of the fixed stars, sun, moon, and other planets, with the time of their 

 transits over the meridian, also observations of the sun and moon's diameters, 

 eclipses of the sun, moon, and Jupiter's satellites, variations of the compass 

 from 1689 to the end of the year 17 19, &c. 



Tables to render the calculation of the stars and planets places, from the 

 observations, easy and expeditious; to which are added the places of the moon, 

 at the oppositions, quadratures, and on her limits, &c. and the places of 

 Saturn, Jupiter, Mars, Venus, and Mercury, derived from the abovementioned 

 observations. 



The third volume contains a catalogue of the right ascensions, polar dis- 

 tances, longitudes, and magnitudes of near 3000 fixed stars, with variations of 

 the right ascensions and polar distances, while they change their longitudes one 

 degreee, by which their right ascensions and distances from the pole may be 

 determined for 200 years past, or to come, sufficiently exact. Large tables, by 

 which the right ascensions and polar distances of the stars and planets, being 

 given, their longitudes and latitudes may be found by inspection. To this vo- 

 lume is prefixed a very large preface; containing an account of all the astrono- 

 mical observations made before his own time, with a description of the instru- 

 ments made use of; as also an account of his own observations and instruments, 

 together with a new Latin version of Ptolomy's catalogue of lO'iO fixed stars, 

 from the Greek, and Uleg-beig's places annexed 011 the Latin page, with the 

 corrections; small catalogues of the Arabs, Tycho Brahe's of about 780 fixed 

 stars, in a proper order; the Landtgrave of Hesse's of 386; Hevelius'sof 1534, 

 in a proper order. A catalogue of some of the southern fixed stars, not visible 

 in our hemisphere, reduced to right ascension, polar distance, longitude, and 

 latitude, with variations of the right ascensions and polar distances, calculated 



