00434nam a22001337i 4500001001000000005001700010008004100027082002200068100004900090245008100139260004100220300001700261650002200278SXC00455820260819093352.0260101s1949    ii            000 0 eng d  a530.028 BLA-E222  aBlack, Newton Henry; Davis, Harvey Nathaniel10aElementary practical physics /cBlack, Newton Henry; Davis, Harvey Nathaniel  abMacmillan Company, New York,c1949  ap. ;c22 cm. 0aPractical physics