Teachers' Assistant; Or, a System of Practical Arithmetic: Wherein the Several Rules of That Useful Science Are Illustrated by a Variety of Examples; A Large Proportion of Which Are in Federal Money; The Whole Designed to Abridge the Labour of Teachers, a: Buy Teachers' Assistant; Or, a System of Practical Arithmetic: Wherein the Several Rules of That Useful Science Are Illustrated by a Variety of Examples; A Large Proportion of Which Are in Federal Money; The Whole Designed to Abridge the Labour of Teachers, a by Pike Stephen at Low Price in India