Rocks and Minerals, Box, 29, Peekskill, N.Y.
Gems and Minerals, P.O. Box 687, Mentone, Calif.
The Mineralogist, P.O. Box 808, Mentone, Calif.
American Mineralogist, technical official publication of the American
Mineralogical Society, Ann Arbor, Michigan, editorial office,
Dept. of Mineralogy, University of Michigan.