000 00363nam a2200133Ia 4500
008 251112s9999||||xx |||||||||||||| ||und||
040 _aCNCLSA
100 _aGladys M. keener
_92941
245 0 _aScience
260 _cJanuary-June, 1952
_bAmerican Association for the Advancement of Science
_aWashington
300 _aP. 1-714
300 _bV. 115
942 _cJRBV
999 _c13809
_d13809