Worst, Edward F. (Edward Francis), 1866-1949, Barber, Harriette, [from old catalog] joint author, Seymour, Marian, [from old catalog] joint author · Chicago, A. W. Mumford and company · leaf 255
stick is placed on a levelsurface, the upright end pointing directly south. If the suns rays were vertical the upright piece wouldcast no shadow. But since the rays do not come to usvertically a shadow is cast. This shadow increases in length according to the slantof the suns rays. Therefore we… … FIGURE XIV. 252 In Figure XIV. is p^iven a piece of apparatus used ingiving pupils of the grammar grades an idea of the arcdescribed by the sun at different seasons of the year. Italso makes clear the seeming rising of the sun south ofeast and setting south of west. To make the apparatus take a…
Manual training · Paper work · Basket making
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