[en] The University of California, Riverside, large area solid-angle double scatter neutron telescope was flown to search for solar neutrons on three balloon flights on 1971 September 26, 1972 May 14, and 1972 September 19. The first two flights were launched from Palestine, Texas and the third from Cape Girardeau, Missouri. The float altitude on each flight was at about 5 g cm^-2 residual atmosphere. Neutrons from 10 to 100 MeV were measured. No solar flares occurred during the flights. Upper limits to the quiet-time solar neutron fluxes at the 95 percent confidence level are 2.8, 4.6, 9.6, and 9.0 x 10⁴ neutrons cm^-2 s^-1 in the energy intervals of 10--30, 30--50, 50--100, and 10--100 MeV, respectively