Strength out of vveaknesse; or a glorious manifestation of the further progresse of the Gospel among the Indians in New-England· [electronic resource] : Held forth in sundry letters from divers ministers and others to the corporation established by Parliament for promoting the Gospel among the heathen in New-England: and to particular members thereof since the last treastise to that effect, formerly set forth by Mr. Henry Whitfield, late Pastor of Gilford in Nevv-England. Published by the aforesaid corporation.