E. regnanscold soda pulp has been bleached to a high brightness (about 87) in a single-stage treatment with alkaline hydrogen peroxide, and also in 2- and 3-stage sequences which used sodium borohydride in the second stage. The sequences did not provide further appreciable increases in the brightness level, but the borohydride-treated pulp showed greater brightness stability when irradiated with UV light, even when the pulp had been subjected to a third stage hydrogen peroxide bleach.