Trumble oil shale cycle distillation plant, The

Abstract

(NOTE: The following article was written after a personal visit to the plant. The statements made are issued with the approval and authorization of Mr. Trumble, except the concluding paragraph.) The investigations of M. J. Trumble at his experimental plant at Alhambra, California, bid fair to mark a new era in the distillation not only of oil shale but of coal and other hydrocarbons.