  Only a year after Pauli’s review article in 1921, in which Pauli had  argued that Weyl’s defence of his unified field theory deprives it of its inherent convincing power from a physical point of view,  Schrödinger (1922) suggested the possibility that Weyl’s 1918  gauge theory could suitably be employed in the quantum mechanical  description of the   electron.[91]  Similar proposals were subsequently made by Fock (1926) and London  (1927). 