Events related to the reported isolation and identification of scotophobin, a dark-avoidance-inducing substance, have provided an example of the often-obscured aspect of the scientific process of criticism and doubt which can only be removed by scrutiny and duplication of experimental results in other laboratories (CP)

Highly technical research was reviewed concerning pharmacology of amphetamines: metabolism, biochemical actions, physiological and behavioral actions, and toxicity. (CB)

Results of studies with undernourished guinea pig mothers and their offspring suggest that adequate postnatal nutrition can offset some, but not all of the brain biochemical changes resulting from fetal undernutrition. (Author/KW)