Stamper, 46, 83 Stark, W. E., 172, 238 Stereoscopic slides, 291 Stobaeus, 8 Straight angle, 151 Straight line, 138 Suggested proofs, 81 Sulvasutras, 232 Superposition, 169 Surface, 140 Swain, G. F., 13 Syllabi, 58, 60, 63, 64, 66, 67, 80, 82 Sylvester II, 43 Synthetic method, 161 Tangent, 154 Tartaglia, 153 Tatius, Achilles, 272 Teaching geometry, reasons for, 7, 15, 20; development of, 40 Textbooks, 32, 33, 41, 70, 80, 82 Thales, 28, 168, 171, 185, 210 Theaetetus, 48, 310 Theon of Alexandria, 36 Thibaut, 185 Thoreau, 246 Trapezium, 148 Treutlein, 68, 164 Triangle, 147 Trigonometry, 234 Trisection problem, 31, 215 Trivium, 42 Universities, geometry in the, 43 Uselessness of mathematics, 13 Veblen, 131, 159 Vega, 279 Veronese, 68 Vieta, 279 Vogt, 259 Wallis, 127, 280 Young, J. W. A., 25, 131, 159, 277 Zamberti, 52 Zenodorus, 34, 253 ANNOUNCEMENTS BOOKS FOR TEACHERS List price Allen: Civics and Health $1.25 Brigham: Geographic Influences in American History 1.25 Channing and Hart: Guide to the Study of American History 2.00 Hall: Aspects of Child Life and Education 1.50 Hodge: Nature Study and Life 1.50 Johnson: Education by Plays and Games .90 Johnson: What to Do at Recess .25 Kern: Among Country Schools 1.25 Mace: Method in History 1.00 MacVicar: The Principles of Education .60 Moral Training in the Public Schools 1.25 Prince: Courses of Studies and Methods of Teaching .75 Scott: Social Education 1.25 Tompkins: Philosophy of School Management .75 Tompkins: Philosophy of Teaching .75 Wiltse: Place of the Story in Early Education, and Other Essays. A Manual for Teachers .50 FOR CLASS RECORDS Comings: Complete Record--Attendance and Scholarship Graded-School Edition .30 High-School Edition .30 Ginn and Company: Teacher's Class Books No. I .30 No. II .40 Twenty Weeks' Class Book .30 CIVICS AND HEALTH