Comment On "On observation of neutron quantum states in the Earth's   gravitational field"
  It is shown that criticism in the paper: "On observation of neutron quantum states in the Earth's gravitational field." Phys.Rev.D {\bf 81} 052008 (2010) of the experiment with neutrons to observe bound levels in gravity field is not correct. 
V.K.Ignatovich
physics.gen-ph