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 261
FIGURE XX.257 The little tripod given in the above exercise is made ofstrips of tin Yi inch in width and riveted together with cop-per tacks. The above drawing illustrates the apparatus necessaryin getting the boiling point. … FIGURE XXI. The apparatus given in this exercise is used to showthat a light color throws oflf more heat than a dark one. The standard is made of wood. The glass tubing may easily be bent by applying the heatof an alcohol lamp. 258 ,The tin box shown above was made by a tinner. Theleft side is…
Manual training · Paper work · Basket making
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