Soft cover. Condition: Very Good. Dust Jacket Condition: Very Good. In 1844 the USS "Yorktown sailed from New York, as part of the U.S. Navy's newly established African Squadron, to interdict slave ships leaving the African coast. Aboard the sloop of war was Master's Mate John C. Lawrence. Over the next two years, Lawrence kept a private journal describing his reactions to events that took place during this extraordinary voyage. Illustrated.