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"Now, when we take three hundred millilitres of  a compound containing hydrogen and oxygen in a ratio of two to one and add three millilitres of an eight-hundredths percent stannous-fluoride solution, and fifty millilitres of treated industrial wastes and solids, we get drinking water."
"Now, when we take three hundred millilitres of a compound containing hydrogen and oxygen in a ratio of two to one and add three millilitres of an eight-hundredths percent stannous-fluoride solution, and fifty millilitres of treated industrial wastes and solids, we get drinking water."

"Now, when we take three hundred millilitres of a compound containing hydrogen and oxygen in a ratio of two to one and add three millilitres of an eight-hundredths percent stannous-fluoride solution, and fifty millilitres of treated industrial wastes and solids, we get drinking water."

Artist (American, 1900 - 1974)
Datec 1965
ClassificationsCartoon
Mediumcrayon ink
DimensionsObject: 7 1/2 × 8 5/16 in. (19 × 21.1 cm) Sheet: 7 3/4 × 8 11/16 in. (19.7 × 22 cm)
Credit LineMary Petty and Alan Dunn Bequest
Object number1982.300