18 books
Leaflets of Western Botany, Vol. 1 (Classic Reprint)
Zoe, Vol. 3 (Classic Reprint)
Zoe, 1892, Vol. 3 (Classic Reprint)
A Popular Flora of Denver, Colorado (Classic Reprint)
Bergen's Botany, Key and Flora
A Popular Flora of Denver, Colorado, - Primary Source Edition
Key and flora
Occasional Papers of the California Academy of Sciences Volume 9
A Handbook of the Trees of California
Spindle Formation in the Pollen-Mother-Cells of Cassia Tomentosa L. Volume 2
Bergen's Botany; Key and Flora Pacific Coast Ed
A Popular Flora of Denver, Colorado,
Leaflets of Western Botany
A Flora of the South Fork of Kings River
A Flora of the South Fork of Kings River; From Millwood to the Head Waters of Bubbs Creek
Erythea
Doctor Hans Herman Behr (1905)
Bergen's Botany
