Construction work in cardboard and paper for grades I to IV, without the use of tools; with a course in woodwork for the fifth grade . 18 f9. 10 3 21 n EXERCISES OF FOURTH CLASS. 53 Materials.—Same as the preceding-. If, by slipping three squares on each branch of thecross (Fig. 16), we make the first box (Fig. 17), and wethen pass the four ends of the bands under a new square,we obtain the construction (Fig. 19) which represents asolid bounded by six squares and eight equilateraltriangles. The box and the sphere last made may be modifiedat the will of the constructor, to make a number of othe
Construction work in cardboard and paper for grades I to IV, without the use of tools; with a course in woodwork for the fifth grade . 18 f9. 10 3 21 n EXERCISES OF FOURTH CLASS. 53 Materials.—Same as the preceding-. If, by slipping three squares on each branch of thecross (Fig. 16), we make the first box (Fig. 17), and wethen pass the four ends of the bands under a new square,we obtain the construction (Fig. 19) which represents asolid bounded by six squares and eight equilateraltriangles. The box and the sphere last made may be modifiedat the will of the constructor, to make a number of otherconstructions, among which we may mention the dollscradle (Fig. 20). By superposing a narrow rectangle on a wider rectangle(Fig. 21), and by successively bending back the four bor-ders, and then arranging them as we have done with thesquare, we obtain the [double rectangle (Fig. 22), withwhich we may form many new combinations. I I 1/ i £=$ 4
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