ABSTRACT
In his 1911 essay ‘On the Relations of Universals and Particulars’ Russell, not yet securely entrenched in his logical atomism, is attempting to adjudicate between two ontologies. One of these is a ‘universals only’ or a ‘no particulars’ ontology (briefly: an NP ontology); the other, a ‘universals and particulars’ ontology (briefly: a U + P ontology).
