  In a recent letter, the AMS collaboration reported the detailed and extensive
data concerning the distribution in energy of electron and positron cosmic
rays. A central result of the experimental work resides in the energy regime
$30\ {\rm GeV}< E < 1\ {\rm TeV}$ wherein the power law exponent of the energy
distribution is measured to be $\alpha ({\rm experiment})=3.17$. In virtue of
the Fermi statistics obeyed by electrons and positrons, a theoretical value was
predicted as $\alpha ({\rm theory})=3.151374$ in very good agreement with
experimental data. The consequences of this agreement between theory and
experiment concerning the sources of cosmic ray electrons and positrons are
briefly explored.
