HOW TO MAKE CONCRETE Fig. 9SHOWING THE CLAY PLACED AT CORNERS OF MODEL. DETAILS OF THE PIECE CORE. 4 Fig. 12PARTS ASSEMBLED FOR CASTING THE PLASTER CASE ALSO SECTION OF THE PLASTER CASE. Fig. 8THE WOODEN MODEL AND PLAN VIEW SHOWING PLASTER APPLIED. Fig. 10PLAN VIEW OF MODEL ALSO TWO HALVES OF MOLD SHOWING JOGGLES. PIECE CORE . . ., scientific american, -1909-07-17
HOW TO MAKE CONCRETE Fig. 9SHOWING THE CLAY PLACED AT CORNERS OF MODEL. DETAILS OF THE PIECE CORE. 4 Fig. 12PARTS ASSEMBLED FOR CASTING THE PLASTER CASE ALSO SECTION OF THE PLASTER CASE. Fig. 8THE WOODEN MODEL AND PLAN VIEW SHOWING PLASTER APPLIED. Fig. 10PLAN VIEW OF MODEL ALSO TWO HALVES OF MOLD SHOWING JOGGLES. PIECE CORE . . ., scientific american, -1909-07-17
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