The necessity of a constant readiness for death : A discourse, preached at Hartford North-Meeting-House, May 25th, 1766. Occasioned by that alarming providence, the sudden demolition of the school-house, by gun-powder; whereby about thirty persons were wounded, six of who are since dead. By the Reverend John Devotion, A.M. of Say-Brook; providentially present. [Five lines of quotations].