Justini Historiae Philippicae V1: Ex Editione Abrahami Gronovii (1822)

The marines and convicts having been previously embarked in the River, at Portsmouth, and Plymouth, the whole fleet destined for the expedition rendezvoused at the Mother Bank, on the 16th of March 1787, and remained there until the 13th of May following. In this period, excepting a slight appearance of contagion in one of the transports, the ships were universally healthy, and the prisoners in high spirits.