A treatise of gavelkind, both name and thing [electronic resource] : shewing the true etymologie and derivation of the one, the nature, antiquity, and original of the other : with sundry emergent observations, both pleasant and profitable to be known of Kentish-men and others, especially such as are studious, either of the ancient custome, or the common law of this kingdome / by (a well-willer to both) William Somner.