Organic buildups in the Lower Ordovician (Canadian) of Texas and Oklahoma / Donald Francis Toomey -- and Matthew H. Nitecki --.

n.s. no.2(1979)

Hooker's journal of botany and Kew Garden miscellany.

v.4 (1852)

Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature.

v.17=no.193-204 (1881)

The forests and flora of British Honduras / by Paul C. Standley and Samuel J. Record ; in cooperation with the Conservator of Forests and the Agricultural Officer of the Colony.

v.12(1936)

Proceedings of the American Academy of Arts and Sciences.

v. 2 (1848-1852)

Proceedings of the American Academy of Arts and Sciences.

v. 3 (1852-1857)

Proceedings of the American Academy of Arts and Sciences.

v. 2 (1848-1852)