An edition of Observations of the apparent distances and positions of 380 double and triple stars, made in the years 1821, 1822, and 1823, and compared with those of other astronomers (1825)

Observations of the apparent distances and positions of 380 double and triple stars, made in the years 1821, 1822, and 1823, and compared with those of other astronomers

together with an account of such changes as appear to have taken place in them since their first discovery : also a description of a five-feet equatorial instrument employed in the observations

By John F. W. Herschel