  The suggestion has been made that the energy spectrum from point sources such
as AGN (Active Galactic Nuclei) and GBHC (Galactic Black Hole Candidates) is
universal, irrespective of the nature of the emitted particles. A comparison of
the energy spectrum for cosmic rays at the source and $\gamma$-rays from
quasars obtained recently by CGRO (Compton Gamma Ray Observatory) indicates
that the prediction is in agreement with the data in the average sense. This
suggests that neutrinos from point sources should have a spectral index
identical to that of $\gamma$-rays for an individual point source. This
prediction is also consistent with the recent observation of neutrinos by
Kamiokande and IMB in which the ratio of $\nu_\mu/\nu_e$ is close to 1, instead
of 2 as expected from atmospheric neutrinos. For a further test of the model,
analysis of the time variation of $\gamma$-ray spectra from quasars is
suggested.
