The following is an abstract of the results, the negative sign denoting retrograde motion :— And, for the year, there is an excess of direct motion amounting to 189°. It will be observed that the near approach to equality of direct and retrograde motion is due mainly to the very large amount of retrograde motion in November. The same fact of large retrograde motion in this month is observable in the Observations of 1860, but it does not apply to the years 1858 and 1859. |