TECHNICAL NOTES 8 GRINDING R. P. King
drawn by ball, semiautogenous and fully autogenous mills have been developed by Morrell and by Austin. (Morrell, S. Power draw of wet tumbling mills and its relationship to charge dynamics Part 2: An empirical approach to modeling of mill power draw. Trans. Instn. Mining. Metall. (Sect C:Mineral Processing Extr Metall.) 105, JanuaryApril