1850, David Hartley, Observations on Man, his Frame, his Duty, and his Expectations; fourth edition, Chapter III, § II, page #329:In ſcientifical propoſitions concerning natural bodies a definition is made, as of gold from its properties, ſuppoſe its colour, and ſpecific gravity, and another property or power joined to them, as a conſtant or common aſſociate.
(Rewritten in modern spelling: In scientifical propositions concerning natural bodies a definition is made, as of gold from its properties, suppose its colour, and specific gravity, and another property or power joined to them, as a constant or common associate.)
