Some observations upon a late piece entitled, The detection detected or a vindication, &c : Containing a discovery of the manner how the Rev. Mess. S. Finley & R. Smith the authors of said piece, handle the obligation of the national and solemn league, the nature of faith, the gospel-offer and some other points. And shewing that the detection is not detected in the manner they pretend. / By Alexander Gellatly Minister of the Gospel, and member of the Associate Presbytery in Pennsylvania. ; [Nine line of Scripture texts].