(7) I(saac) F(arwell) Holton collected extensively from Charleston, Kanawha County, to Hawks Nest, Fayette County, in October, 1849. The full number of plants collected by him is unknown : 50 are in the Herbarium of the Field Museum of Natural History. His private Herbarium was deposited in that of Columbia University and is now at the New York Botanical Garden.
(8) Prof. W(illiam) H(enry) Brewer, while Professor of Botany at Yale, in 1860, made a collection of plants in Ohio County in the vicinity of Wheeling, and Brooke County near Bethany. The amount of material he secured is unknown to me; it is deposited in the Herbarium of Yale University.
(9) W(illiam) M(arriott) Canby, an extensive Botanical collector late of Wilmington, Del., made a small collection in Taylor County, near Grafton, in 1868. The details of his collecting in the State I have not been able to determine. His plants are deposited in the Herbarium of the New York College of Pharmacy.
(10) J. S. Merriam made a collection of plants in Jefferson County in the vicinity of Harpers Ferry in 1871. The extent of his collecting I have not yet been able to determine. His specimens are deposited in the U. S. National Herbarium, Washington, D. C.
(11) Dr. T(imothy) F(ieed) Allen, of New York, collected in July 1872, on Kates Mountain and at other points in the neighborhood of White Sulphur Springs. His plants are deposited in the Herbarium of the New York Botanical Garden. (See also Allen and Britton).
(12) J(oseph) F(rancis) James, of Ohio, spent about two weeks in 1877, investigating the Flora of the region of the Guyandotte and Great Kanawha Rivers from Huntington to Kanawha Falls and the Hawks Nest ; and the region of Loup Creek, in Fayette County. The amount of material that he collected is not known to me. His plants are in the Gray Herbarium and the Cryptogamic Herbarium at Harvard University.