A further accompt of the progresse of the Gospel amongst the Indians in New-England, and of the means used effectually to advance the same : set forth in certaine letters sent from thence declaring a purpose of printing the Scriptures in the Indian tongue into which they are already translated : with which letters are likewise sent an epitome of some exhortations delivered by the Indians at a fast, as testimonies of their obedience to the Gospell : as also some helps directing the Indians how to improve naturall reason unto the knowledge of the true God