The salutary effect of the British constitution in the present critical period-a subject of the warmest gratitude to god, and a strong motive to the practice of religion : A sermon, preached before the Royal Aberdeen Light Infantry Volunteers, on Sunday, June 9, 1799. To which are added, the prayer at the consecration of their colours, and, the address delivered to the corps, on the 4th of the same month and year. Published by desire of the corps. By W.L. Brown, D.D. principal of Marischal College, professor of Divinity, and minister of Grey Friars Church, and chaplain to the corps.