Bartonia;proceedings of the Philadelphia botanical club ... - Philadelphia Botanical Club. (Philadelphia Botanical Club, Academy of Natural Sciences, 1986)

Greenhouse management for amateurs - May, William J. (Gill)

Greenhouse management for amateurs - May, William J. (Gill)

A student's text-book of botany - Vines, Sydney Howard, 1849 -1934 (Swan Sonnenschein, 1895)