He was therefore not only obliged to study a comparatively new science, but to do it in a new language; and when the course began, he had to instruct his class daily in tasks which he committed nightly.

Most men would have sunk under the task, but he went triumphantly through it, and I have never heard that the students or others ever had cause to suspect his information or question his abilities.

He wrote to me, and perhaps to me only, on this subject.
There was something like a public clamor for the results of the expedition, and the narrative was hurried into press.

A new zeal was awakened upon the subject of mineralogy and geology.

A friend wrote to me on the mineral affluence of upper Georgia.