An act for setting apart a day of publique fasting and humiliation to be observed on Thursday the thirteenth day of March, 1650. within the cities of London and Westminster; : and on the second day of April, 1651. in all other places within this Commonwealth. Together with a declaration of the grounds and reasons thereof. Die Veneris, 7 Martii, 1650. Ordered by the Parliament, that this Act be forthwith printed and published. Hen: Scobell, Cleric. Parliamenti.