The American Nation: a history from original sources by associated scholars;

Vols. 1, 3-12, 14-16, 18-20, 22, 25-27 have no date on t. p.

Bulletin of the Pan American Union

Mode of access: Internet.

Bending the twig; the revolution in education and its effect on our children,

Includes bibliographical references.

Catalogue of the "Davenport herbarium" of North American ferns, north of Mexico.

"Some comparative tables showing the distribution of ferns in the United States of North America. By George E. Davenport" (605-612p., extracted from Proceedings of the American Philosophical Society, v.20) inserterted at end.