Frederick Emerson

• Key to the North American Arithmetic: For the Use of Teachers
• The North American Arithmetic
• The North American Arithmetic: Part First, Containing Elementary Lessons
• The North American Arithmetic: Part First, for Young Learners
• The North American Arithmetic: Part Second, Uniting Oral and Written Exercises in Corresponding ..
• A Key to the North American Arithmetic, Part Second: For the Use of Teachers
• A Key to the North American Arithmetic: Part Third
• Key to the North American Arithmetic
• Key to the North American Arithmetic: Part Second and Part Third, for the Use of Teachers
• The North American Arithmetic: Containing Elementary Lessons
• The North American Arithmetic: Part Third, for Advanced Scholars