Traces the origins of molecular biology to the work of 19th century biophysicists, ultrastructurists and collodial chemists. The development of the Aggregate Theory,and its overthrow by the Macromolecule Concept is described. Research in molecular genetics in the pre-second world war period, and the effects of the war on it, are briefly reviewed.…

The author describes his training conducted by Anna Freud and the emergence of his concepts of identity and identity crisis. He recapitulates his conceptual ancestry, insofar as it originates in psychoanalysis, in order to indicate that psychoanalysis represents a very special admixture of laboratory conditions, methodological climate, and…

The attention of sociologists in Europe and the U. S. continues to be directed to sociological analysis and the elucidation of major sociological themes. Institutionalization has occurred but integration is discontinuous. (VW)

Experiment compares the effect of equilibration type training to the effects of S-R reinforcement type training in developing weight-conservation concepts in second and third grade pupils. S-R group performed significantly better than control group on initial posttest for conservation of weight. A measure for permanence of the conservation beliefs…

Discusses an experiment for the measurement of the half-life of cosmic ray muons by using a single scintillator detector. (LS)

Discusses a strategy for presenting science concepts via activities which include personal, self-sensitizing frames of reference for students. Examples include force and temperature measurement. (JM)

discusses the cosmology theory of a black hole, a region where an object loses its identity, but mass, charge, and momentum are conserved. Include are three possible formation processes, theorized properties, and three way they might eventually be detected. (DS)

Describes general characteristics of enquiry - principle of enquiry, fact, problem, hypothesis, interpretation and outcome. These characteristics of enquiry give rise to five general characteristics of knowledge. (LS)