Abstract
Hubble's recent nebular counts have brought the question of a static universe into the fore-front. The red shift of the nebulae in a static universe can be explained if instead of postulating a growing world radius we proceed on the assumption of a shrinkage of the universal lengths of atomic physics, this being equivalent to a decrease with time of the quantum of action. A new quantity, ḣ, is thereby defined and, if introduced into the Dirac equation of the electron, leads to gravitation. The consequences of this connection and other features of the theory are discussed and compared with experience.