Royal observatory, Greenwich.
Appendix to the Greenwich observations, 1836. Com- puted under the direction of George Biddell Airy. London: J. Murray. 1837. (1), lxxiii pp. 4°.
**5090.76 Contents.--Bessel's refraction tables; Table of factors for converting errors of right ascension and north polar distance into errors of longitude and ecliptic polar distance.
Same. (In Royal observatory, Greenwich. Astronomical
(Continued)
Oo cnn br lead > Qe 2 eres of observation.