Results of spirit leveling in Nebraska, 1896 to 1913, inclusive. Work done in cooperation with the State from 1911 to 1913, inclusive, through the Board of regents of the University of Nebraska.

Mode of access: Internet.

Fourth International congress on school hygiene, Buffalo, New York, U.S.A., August 25-30, 1913. Transactions;

Subtitle vol. II-V: Papers.

Report of proceedings of the American Mining Congress, sixteenth annual session, Philadelphia, Pa., October 20-24, 1913.

Mode of access: Internet.

Some American medical botanists commemorated in our botanical nomenclature. Delivered as a lecture before the Medical Historical Society of Chicago, 1910, and before the University of Nebraska, October 16, 1913.

Bibliographical footnotes.