In 1976, W. Tifft claimed that galaxies in the Coma cluster had velocities which were integer multiples of 72 km s^-1.Studying HI emission from galaxies, the quantum was later revised to 36 km s-1. These claims were greeted with skepticism. More recently, Napier and Guthrie (1996) studied spiral galaxies in the local supercluster and obtained a redshift peak at 37.5 km s^-1 for their initial sample of 97 galaxies, and again for an additional sample of 117 more galaxies. No good explanation for how this effect could occur has been put forward.