A short vindication of Phil. Scot's Defence of the Scots abdicating Darien : being in answer to the challenge of the author of the defence of that settlement, to prove the Spanish title to Darien by inheritance, marriage, donation, purchase, reversion, surrender, or conquest : with a prefatory reply to the false and scurrillous aspersions of the new author of The just and modest vindication, &c. and some animadversions on the material part of it, relating to the title of Darien.