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
^ ;—^—\ \ \ \ … FIGURE XIII. Figure XIII. shows what may be done in the primarygrades by way of measuring the slant of the suns rays atdififerent seasons of the year. The httle piece of apparatus is made of two pieces ofwood—one I2x3x>4, the other 4x3x>^. A small brace is required to keep the upright piece…
Manual training · Paper work · Basket making
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