An edition of The computation of the transits of Venus for the years 1874 and 1882, and of Mercury for the year 1878 (1873)

The computation of the transits of Venus for the years 1874 and 1882, and of Mercury for the year 1878

for the earth generally and for several places in Canada, with a popular discussion of the sun's distance from the earth and an appendix showing the method of computing solar eclipses

By J. Morrison