"The Iroquois Arithmetics for School and Life" by Harry DeW. DeGroat, Sidney 'G. Firman and William A. Smith. 350 pp, including index.Textbook is a. and answer book is b. Textbook is Book 3, for grades seven and eight. Split into seventh and eighth grade sections, with each section being divided into semesters. b. Iroqouis Arithmetics: Answers for Book 3 for grades seven and eight. By the same authors. 37 pp. Color: GR,BK,WH,RD