Pick up the incorrect statement from the following :

• The rate of flow of water through a unit cross-sectional area under a unit hydraulic gradient, is called coefficient of permeability
• The rate of flow of water through a vertical strip of the acquifer of unit width and full depth under a unit hydraulic gradient, is called coefficient of transmissibility
• The flow of water through acquifers, is governed by the Darcy's law
• The term 'transmissibility' was introduced by Meinzer
• The ratio of coefficient of transmissibility and coefficient of permeability, is equal to the depth of acquifer through which water flows.