We have reported in the previous International Meetings on Ferroelectricity that glycerol shows the glassy state below a certain temperature, T-a Recently we have found that the activation energy to complete the glassy state is 0.18-0.19 eV for all polyhydric alcohols. Furthermore we have found that the activation energy decreases little by little with the increase of amount of addition of water. Such a result is very important to know the mechanism of the formation of glassy state and to clarify the molecular structure in glass.