Algebra

Philosophy and Fun of Algebra

Mary Everest Boole

The Number-System of Algebra (2nd edition)

Treated Theoretically and Historically

Henry B. (Henry Burchard) Fine

A Review of Algebra

Romeyn Henry Rivenburg

On the study and difficulties of mathematics

Augustus De Morgan

Philosophy and Fun of Algebra

Mary Everest Boole

The First Steps in Algebra

G. A. (George Albert) Wentworth

A First Book in Algebra

Wallace C. (Wallace Clarke) Boyden