ABSTRACT. 'Individual' Laycock uses as a convenient term for any putative distinct object of reference, whether concrete or abstract, whether particular or universal. Generally, being concrete is closely related to being extended and, specifically, to solidity. Particulars Laycock takes to be standardly distinct, concrete, countable individuals, whose identity is bound up with their spatio- temporal continuity, and which may both come to be and cease to be in very familiar ways.