RT Book, Whole DB /z-wcorg/ DS http://worldcat.org ID 000495319 LA English T1 Prince Henry, the Navigator, A1 Jacobs, William Jay., PB F. Watts PP New York YR 1973 SN 0531009726 9780531009727 AB A biography of the Portuguese prince who made sailing safer by his navigational maps and who designed the caravel--a type of sailing ship.