00422nam a22001337a 4500003000800000005001700008008004100025040002100066082001300087100001900100245010100119260003900220300002900259BD-DhUL20141223173852.0141223s1959    us a|||| |||| 000 0 eng d  aBD-DhULcBD-DhUL  a540bFEL  a Feifer Nathan  aLets explore chemistry :  bthe hows and whys of chemistry 200 safe Experiments /cNathan Feifer  aNew York :bSentinel Books,cc1959  a128 p. :bills. ;c20 cm