George Bird Grinnell,
Popular Science Monthly
(1878)
“ AMONG the younger workers in science in America, no name stands higher than that of Prof. O. C. Marsh. Enthusiastic, energetic, and capable of an unlimited amount of work, he has already contributed more than any one else to our knowledge of the ancient life of this continent. Many of his discoveries have proved of the greatest interest to the student of biology, and have a direct and highly-significant bearing on some of the most important scientific problems of the day. ”
