Handbook of the flora of Philadelphia and vicinity, containing data relating to the plants within the following radius: eastern Pennsylvania, north to the Blue mountains, and west...

Author: Keller, Ida Augusta.
Published 1905

Bartonia; proceedings of the Philadelphia botanical club

An account of the two hundreth aniversary of the founding of the first botanic garden in the American colonies

Author: Bartram, John.
Published 1931

Facts and fancies in remembrance of pleasant hours and congenial companionship while "outing' on the Susquehanna hills and islands at York furnace, 1892

Published 1893