A discourse on the nature and reasonableness of fasting, and on the existing causes that call us to that duty : Delivered at Princeton, on Tuesday the 6th January, 1795. Being the day appointed by the Synod of New-York and New-Jersey, to be observed as a general fast, by all the churches of their communion in those states; and now published in compliance with the request of the students of theology and law in Princeton. / By Samuel Stanhope Smith, D.D. vice-president and professor of moral philosophy and divinity, in the College of New-Jersey.