CONTENTS.
[On the Telegraphic Determinations of Longitude by the Bureau of Navigation]: Lieut. J. A. Norris, U. S. N.
Reports of the Vice-Presidents:
[Geography of the Land]: Herbert G. Ogden
[Geography of the Air]: A. W. Greely, Chief Signal Officer, U. S. A.
[Annual Report of the Treasurer]
[Report of Auditing Committee]
[Annual Report of the Secretary]
National Geographic Society:
[Abstract of Minutes]
[Officers for 1890]
[Members of the Society]
Published April, 1890.
PRESS OF TUTTLE, MOREHOUSE & TAYLOR, NEW HAVEN, CONN.