00390nam a2200157Ia 450000500170000000800460001703700120006304000200007504100130009508400210010810000250012924500280015426000090018230000090019149000320020020250508151052.0008  250505s9999    xx            000 0 eng d  aTextual  aFEDLbengcFEDL  aeng2eng  a372.3, PARqFEDL  aParker Bertha Morris 0aWhat things are made of  c1950  a35p.  aThe basic science education