Who was Horatius Bonar?

Thanks to Barry Horner for making this available:

Better known as a nineteenth-century hymn writer, Horatius Bonar (1808-1889)
fulfilled a ministry of far greater dimensions, both practically and scholarly. He
participated in a remarkable spiritual awakening in Scotland, and in 1839 joined
a tour of the Holy Land, a Mission of Enquiry to the Jews on behalf of the
Church of Scotland.

His prophetic writings were considerable.  In 1847 he published Prophetical
Landmarks, Containing Date for Helping to Determine the Question of Christ's
Premillennial Return. He was also editor of The Quarterly Journal of Prophecy
from 1849 to 1873. In 1849 he also published The Coming and Kingdom of the
Lord Jesus Christ, being a refutation of the postmillennialism of the Rev. David
Brown...keep reading

See also J. C. Ryle