The remarkable Monument of antiquity which gives its name to the Vale of White Horse in Berkshire, has not, I believe, attracted the particular attention of any antiquary since 1738, when the Rev. Francis Wise published his “Letter to Dr. Mead, concerning some Antiquities in Berkshire,” &c.; or, perhaps I should rather say, since 1742, the date of his second work upon the subject, entitled “Further Observations upon the White Horse and other Antiquities in Berkshire,” &c.