American Scientist, Volumes 39-40Sigma Xi, 1951 - Greek letter societies |
Contents
SCIENTIST | 225 |
The Ecological Approach to the Social Sciences | 244 |
The Origin of the Posterior Pituitary Hormones | 255 |
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absorption activity air-fuel ratio animals applied atomic basic behavior biology BOOKSHELF Continued brain cells cent changes chapter chemical chemistry chondrites chromosomes complete concept corn corpus luteum curve density discussion earth edition effect electric electron elementary particles embryo energy engine evolution experience fact field figs Figure function galaxies genes genetics Henry Gross hormones human hyphae illustrations important increase industry interest iso-octane John Wiley laboratory machine macroevolution malaria material measure mechanism ment metal meteorites methods microwave microwave spectroscopy molecular molecules mutation nature neurons nucleus observed operation organization origin particles pattern physical planetesimals plant plates possible present principles problems production Professor proteins protoplanet published ratio reaction recent result rhesus monkey scientific scientists selection Sigma Xi species spiders structure tables temperature theory tion United University Press uterus volume Wiley & Sons