School funds and school laws of Michigan: with notes and forms . I I Fig. 6 —^SpheiB and Oblate BphsToid. SpL«ie. Prolate Splieicid. 408 SCHOOL APPARATUS. Fig. 7.—Cone, Pjramid, Frustnim, etc.

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Keywords: ., bookcentury1800, bookdecade1850, bookidschoolfundss, bookyear1859