A Manual of Experiments in Elementary Science: Teacher's Edition (1918)
Curtis, Francis D. · Charles E. Merrill Company · leaf 158
134 EXPERIMENTS IN ELEMENTARY SCIENCE determine reservoir sites ; (4) To determine trolley routes, since the nature of the country, patronage (as indicated by the number of houses), territory, etc., between towns, is indicated. For Dia¬ gram 1, see Figs. 77, 78, and 79 ; for Diagram 2, see Figs. 80… … Fig. 80 (S). ~ Fig. 81 (S). SPECIAL STUDY OF TYPICAL TOPOGRAPHICAL MAPS In the five following exercises on contour maps, the questions have been carefully selected with a view of making each one contribute a suggestion which will be productive of thought and interest on the student’s part. The…
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