Discourses on several public occasions during the war in America : Preached chiefly with a view to the explaining the importance of the Protestant cause, in the British colonies; and the advancement of religion, patriotism and military virtue. Among which are a discourse on adversity; and also a discourse on planting the sciences, and the propagation of Christiantiy, in the untutored parts of the earth. With an appendix, containing some other pieces