Ross indexed the following pages under the keyword: "Recognition".

Function random function Orthogonality of criteria Pattern (in general) recognition of Recognition by random functions 5560 5561

Summary: Demonstration of how, over any set, any subset can be marked off as having a "natural" grouping. Even bigger batch 5896, 6167 Recognition of pattern (odd-one-out) 5836 5836A

Odd-one-out Pattern (in general) all are arbitrary Recognition of pattern (odd-one-out) 5896 5897

Summary: What a species can do, it can recognise. Genes making recogniser Recognition control by genes Localisation of adaptation (niche) Niche (ecological) mathematical example 6298 6299