00738cam a2200205 4500 622814170 TxAuBib ||||||s1959||||||||||||||||||||||||eng|u 44-002771 DLC TxAuBib Parker, Bertha Morris. Machines / by Bertha Morris Parker...Checked for scientific accuracy by Clifford Holley. Evanston, Ill., New York city [etc. : Evanston, Row, 1959. 35 [1] p. : illus. ; 22 cm. Basic science education series, The "Illustrations by George Sargent."--p. [36]. Machinery Juvenile literature. The Basic science education series. TXHAP