A vindication of the Associate Synod : upon the head of their principles about the present civil government: against the gross misrepresentations and reproaches by which they are abused in the supplement to a performance, intituled, Act, declaration and testimony, &c. by the Reformed Presbytery. In which it is proven, contrary to the shameless pretences of the pretended Reformed Presbytery,--that an owning of the present civil government is agreeable to the principles and practice of our reformers, and of our martyrs, in the bloody reigns of Charles II. and James VII. /