00257nam a2200109Ia 4500008004100000040001100041100002800052245001200080260003000092300001600122300000900138251112s9999||||xx |||||||||||||| ||und||  aCNCLSA  aDaniel E. Koshland, Jr. 0aScience  bWaverly Press Inc.aU.S.A  aP. 939-1384  bV. 3