IN a series of papers published in 1942, some in the Manual of Myiology, Dr. H. T. Townsend, of S. Paulo, Brazil, puts forward a revolutionary sot of new physical theories. While there does not appear ...

Chemists have refuted a basic postulate of Förster theory, which describes energy transfers between pigment molecules, such as those that underlie photosynthesis. A revised version of the theory could ...