THE Not in Kis NORMAL UNION ARITHMETIC GRADED COURSE. PART III. BY EDWARD BROOKS, A. M., Pн. D., SUPERINTENDENT OF PUBLIC SCHOOLS OF PHILADELPHIA, PRINCIPAL AND PROFESSOR OF MATHEMATICS IN PENNSYLVANIA STATE NORMAL 'Analysis and Synthesis;-the magic wand whose touch unfolds the mysterious and PHILADELPHIA: CHRISTOPHER SOWER COMPANY. 614 ARCH STREET. W |