A catalogue of the animals of North America: Containing, an enumeration of the known quadrupeds, birds, reptiles, fish, insects, crustaceous and testaceous animals ... to which are added short directions for collecting, preserving, and transporting, all kinds of natural history curiosities.

Largely based on specimens he had access to from the British collections of Thomas Pennant and Anna Blackburne, this was Forster's attempt to systemize on the Linnean model the fragmented field of natural history studies from the Americas. It includes important directions for collecting and preserving specimens. Digital facsimile from Biodiversity Heritage Library at this link.