Observations upon the chief acts of the two late p. assemblies at St. Andrews and Dundee, the year of God 1651, and 1652 : together with the reasons why the ministers, elders, and professors, who protested against the said pretended assemblies, and the pretended assembly at Edinburgh, cannot agree to the overtures made to them at the conference upon the 28. and 29. dayes of July 1652 ...