1839 J. Buel ix. 70 The inert, insoluble matter of peat-swamps is rendered soluble and enriching, by..manure.
1923 76 36 The specimens taken from a peat swamp were also persistently and conspicuously hirsute.
1992 D. J. Mabberley (ed. 2) vi. 162 In the peat-swamp forest of Sarawak, the commercially important Gonystylus bancanus..is distributed by a small catfish.