Erratum.
In the report "Neutron and proton dosages in the upper atmosphere from solar flare radiation" by E. J. Flamm and R. E. Lingenfelter (26 June, p. 1566), the factor 1/micro should be eliminated from Eqs. 2, 3a, and 3b. This correction reduces the calculated neutron and proton doses by approximately 50 percent but does not otherwise alter the conclusions drawn from the calculation. The authors thank Dr. I. M. Karp for pointing out this error.