The Arawack Language of Guiana in its Linguistic and Ethnological Relations

International Language and Science Considerations on the Introduction of an International Language into Science

The Author's Desk Book Being a Reference Volume upon Questions of the Relations of the Author to the Publisher, Copyright, The Relation of the Contributor to the Magazine, Mechanics of the Book, Arrangement of the Book, Making of the Index, Etc.

Beginners' Book in Language. A Book for the Third Grade

The Negro_ What is His Ethnological Status? 2nd Ed.

Hints on Horsemanship, to a Nephew and Niece or, Common Sense and Common Errors in Common Riding