356 



CATALOGUE. PRACTICAL ASTRONOMY, 



Short's comparison of observations of the 

 transit. Ph. tr. 1762. 611. 

 Parallax at the time 8".52, mean parallax 8".65. Sun's 



greatest apparent diameter 32' 33", least 3i' 28", mean 



82' o".5. 



Short's further investigation of the solar pa- 

 rallax. Ph. tr. 1763. 300. 



At the time 8". 56, which he thinks true within ^ th ; 

 hence we have 8".69 for the mean. 

 ^ Duval on the sun's distance from the earth. 

 Ph.tr. 1763. 1. 

 Ferguson's scheme of the transit of 1769. 



Ph. tr. 1763. 30. 

 Hornsby on the sol.ir parallax. Ph. tr. 1763. 



467. 

 At the time e".732. 



Hornsby on the transit in 1769. Ph. tr. 1765. 



326. 



Hornsby on the sun's parallax. Ph. tr. 1771. 



574. 



Makes it 8".72. 



The distance of the sun deduced from the 

 theory of gravity. Edinb. 1763. 



Pingre's supplement on the transit. Ph. tr. 

 1764. 152. 



Pingre on the solar parallax. A. P. 1772. i. 

 398. H. 71. 

 Mean 8".8. 



Mallet on parallax. Ph.tr. 1766.244. 



Horsley on the sun's distance deduced from 

 the lunar motions by Stewart's method. 

 Ph.tr. 1767. 179. 

 Parallax 6" 52"'.4. 



Horsley's remark on Stewart's method. Ph. 

 tr. 1769. 153. 



Landen's animadversions on Stewart's com- 

 putation. R, S. 



SJohl von den durchg'angen den Venus. 8. 

 Greifswald, 1768. 



Smeaton and Maskelyne on menstrual pa- 

 rallax. Ph. tr. 1768. 154. 



Planman on the solar parallax. Ph, tr. 1768. 

 107. 



At the time 9".28. 

 Maskelyne on the transit of Venus 1769. Ph. 

 tr. 1768. 555. 



Distinct marks of an atmosphere, or of inflection, or of 

 both. 

 Hirst on the phenomena of the transit. Ph. 



tr. 1769. 228. 

 On the transit of Venus. N.C.Petr. XIV. ii.i. 

 f Price on the aberration of light as retarding 



the tratisit. Ph.tr. 1770. 536. 



On Winthrop's principles he makes the retardation 

 18' 16" of time : the true retardation is only about 9' 20". 

 See Optics. 



Lalande on the solar parallax. A. P. 1771. 

 776. H. 83. 



Mean 8".62, polar 8".58. 

 Smith on the sun's parallax. Am. tr. I. 162. 

 Euler on the sun's parallax, computed by 

 Lexell. Ph. tr. 1772. 69. 



Makes it 8".55. 

 A. P. Index. Art. Soleil. Venus. 

 Ph. M. X. 181. 



Laplace makes the parallax 8".e from the moon's motion. 



Observations of the Solstice. 

 Halley, Ph.tr. 1695. XIX. 12. 

 A problem applicable to this subject. Pem- 

 berton. Ph.tr. 1772.434. 



Observations of Solar Altitude. 



f R. Graham's globular instrument for alti- 

 tudes. Ph. tr. 1734. XXXVIII. 430. 



Cassini de Thury on the variation of solsti- 

 tial altitudes. A. P. 1748. 257- H. 91. 



Bouguer on observations of altitudes at sea. 

 A. P. Pr. II. iv. 



Lalande on the observation of meridian and 

 corresponding altitudes. A, A. 1757.516. 



Pemberton on two observations for the lati- 

 tude. Ph. tr. 1760. 910. 



Observations of the Planets. 

 Aberration. See Optics. 



