Two letters of great concernment, with their answers. The one, from the Scotish Commissioners at London, to the Generall Assembly of the Kirk of Scotland. Together with the answer of the aforesaid Generall Assembly to the said Commissioners. The other, from the synod of Divines in England, to the Generall Assembly of Scotland. Together with the answer also of the aforesaid Generall Assembly in Scotland, to the said synod.