Two discourses delivered October 25th. 1759. Being the day appointed by authority to be observed as a day of public thanksgiving, for the success of His Majesty's arms, more particularly in the reduction of Quebec, the capital of Canada. : With an appendix, containing a brief account of two former expeditions against that city and country, which proved unsuccessful. / By Jonathan Mayhew, D.D. Pastor of the West Church in Boston.