本书是一本民国时期中学生用的英文原版平面几何课本。
书中介绍了中学几何的知识及内容，同时配以相应的习题与解答，以供读者更好的理解。
本书适合中学师生及数学爱好者参考阅读。

STAGE A FUNDAMENTAL IDEAS AND ASSUMPTIONS
STAGE B
PART Ⅰ PARALLELS, CONGRUENCE AND INEQUALITIES
PART Ⅱ
SECTION 1 AREAS
SECTION 2 THE CIRCLE
PART Ⅲ S IMILAR FIGURES
APPENDIX
(Ⅰ) PROOFS OF FUNDAMENTAL THEOREMS
(Ⅱ) THE TANGENT AS A LIMITING CHORD
(Ⅲ) SUMMARY OF THEOREMS
(Ⅳ) SUMMARY OF CONSTRUCTIONS
INDEX
ANSWERS
STAGE A
STAGE B
编辑手记