[23] Arthur Hugh Clough, 1819-1861. The poet was resident in America from November, 1852, to June, 1853.
[24] It also often has the distribution of a certain number of public documents of scientific value. I am about to ask its secretary to procure for you, if possible, a copy of Frémont’s two reports, which you desire,—if too late to procure it gratis, as I fear, to purchase the volume at my expense.—A. G.
[25] Thaddeus Wm. Harris, 1795-1856; librarian of Harvard College and a distinguished entomologist.
[26] Dr. Gray sent to Kew manilla paper for the genus covers in the herbarium.
[27] George Thurber, 1821-1890; born in Providence; botanist to the United States and Mexican Boundary Survey Commission; then in the Assay Office in New York; later, editor of the American Agriculturist; a student of grasses.
[28] From a letter to Sir W. J. Hooker: “Curious that this correspondence, after lying so long, should at length be printed and published in New England.”—A. G.
[29] Charles W. Short, M. D., 1794-1862; professor of materia medica in the University of Transylvania, Lexington, Ky. Removed later to Louisville. Dr. Gray named for him Shortia galacifolia, discovered in Michaux’s herbarium in Paris, in 1839.
[30] On the 2d July, 1872, Dr. Gray saw the Calaveras and Mariposa groves. In the Calaveras Grove he counted, with one of his fellow-travelers, the rings and took measurements of the fallen tree “Hercules.” His memoranda of the size, etc., were:—
Height when standing was 315 feet.
A section at 21 feet from ground was 6 feet 10½ inches radius, on the line counted.