The coming of the pond fishes; an account of the introduction of certain spiny-rayed fishes, and other exotic species, into the waters of the lower Columbia river region and the Pacific coast states,

Mode of access: Internet.

Observations on the genus Typhlopone, with descriptions of several exotic species of ants.

Mode of access: Internet.

A natural history of new and rare ferns : containing species and varieties, none of which are included in any of the eight volumes of Ferns, British and exotic, amongst which are the new hymenophyllums and Trichomanes /

Includes index.

A catalogue of the indigenous and exotic plants growing in Ceylon, distinguishing the several esculent vegetables, fruits, roots and grains; together with a sketch of the divisions of genera and species in use amongst the Singhalese. Also an outline of the Linnaean sexual system of botany: in the English and Singhalese languages. For the use of the Singhalese.

"Additions" and "Corrections": [4] p. at end.