Twenty psychic healers and 40 nonhealers participated in a conceptual replication of an experiment by Braud. Each session consisted of 2 runs of 8 trials. During the test run, participants (Ps) attempted to remotely retard the rate of the hemolysis of blood samples inside a spectrophotometer on Trials 4-5. The DC component of the earth's geomagnetic field (GMF) as applied to the blood samples was manipulated between runs. Ps also were queried about their healing practices and beliefs and completed an abbreviated Hartmann Boundary Questionnaire (BQ) and the Spiritual Transcendence Scale (STS). Relative hemolysis retardation was suggestively associated with high values of ambient GMF on the ...