Columbia subject headings:
Harvard subject headings:
Belavenet︠s︡, Ivan Petrovich, 1829-1878.
Compass--History.
Magnetism of ships.
Navigation--Soviet Union--History.
Sailors--Soviet Union--Biography
Princeton subject headings:
Belavenet︠s︡, Ivan Petrovich, 1829-1878.
Navigation--Soviet Union--History--19th century.
Russia. Voennyĭ flot--Officers--Biography.