A second defence of the propositions by which the doctrine of the Holy Trinity is so explained according to the ancient fathers, as to speak it not contradictory to natural reason : in answer to a Socinian manuscript, in a letter to a friend : together, with a third defence of those propositions, in answer to the newly published reflexions, contained in a pamphlet, entituled, A letter to the reverend clergy of both universities / both by the author of those propositions.