00941cam a2200241 4500 622843710 TxAuBib ||||||s1967||||||||||||||||||||||||eng|u 67-014895 DLC TxAuBib Pine, Tillie S. The Africans knew / by Tillie S. Pine and Joseph Levine. Pictures by Ann Grifalconi. New York : McGraw-Hill, 1967. 28 p. : illus. (part col.) ; 26 cm. Colorfully illustrated text reveals that African tribes of long ago knew and practiced the techniques of smelting iron, casting bronze, irrigating crops, and making and mixing paints and dyes. Africa Civilization Juvenile literature. Africa Civilization. Technology Juvenile literature. Technology. Grifalconi, Ann. Levine, Joseph. TXHAP