HOW TO MAKE CONCRETE POTTERYIV. BY RALPH C. DAVISON. Fig. 15SUCCESSIVE STEPS IN MAKING THE OUTSIDE MOLD. Fig. 18TEMPLATE FOR INNER PART OF CORE. Fig. 19TEMPLATE FOR PLASTER MODEL. Fig. 21PARTS ASSEMBLED FOR CASTING PLASTER CASE. MIXTURE. Fig. 14CORRECT AND INCORRECT METHODS OF DIVIDING THE OUTSIDE MOLD. SRHYOLt ON WHICH CORE AS TURNED Fig. 16THE CORE MADE IN FOUR PIECES., scientific american, -1909-07-31
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HOW, MAKE CONCRETE POTTERYIV, RALPH C, DAVISON, Fig, 15SUCCESSIVE STEPS, MAKING, OUTSIDE MOLD, Fig, 18TEMPLATE FOR INNER PART, CORE, Fig, 19TEMPLATE FOR PLASTER MODEL, Fig, 21PARTS ASSEMBLED FOR CASTING PLASTER CASE, MIXTURE, Fig, 14CORRECT, INCORRECT METHODS, DIVIDING, OUTSIDE MOLD, SRHYOLt, CORE, TURNED Fig, 16THE CORE MADE, FOUR PIECES, scientific american, -1909-07-31, science, scientific, sciences, mind, health, tech, sustainability, publication, lab, sciam, sa, scientist, research, american, experiment, education, discovery, technology, analysis, magazine, u.s., insights, developments, weekly, broadsheet, inventor, innovation, inventions, patented, industrial revolution, emerging, trends, monthly magazine, united states, engravings, curious works, paper, discover, Scientific Paper, Weekly Journal, Practical Information, Art, Science, Mechanics, Chemistry, Manufactures, research, education, scientist, innovation, 19th century, vintage, america, Rufus M. Porter, 1845, journal, academic, newspaper illustrations, retro style, old-fashioned, media illustrations, victorian style, news, newspaperheadline, 19th century style, illustration, journalism
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