title: On A.J. Underwood's model for a random pattern.
abstract: Three different "random" spatial models, incorrectly treated as identical by Underwood (1978), are described and their distinctness noted.
authors.affiliation: Biology Department, Dalhousie University, B3H 4J 1, Halifax, Nova Scotia, Canada.
authors.forename: E C
authors.initials: EC
authors.lastname: Pielou