Report of U. S. National Museum, 1 899. Merir!. 



APPALACHIAN 

 CRYSTALLINE 



.? Perldntilt-s and other Basic 

 ;/ Mngncsian Rocks. 



X Corundum localities. 



MAP SHOWING DISTRIBUTION OF CORUNDUM AND PERIDOTITE IN THE EASTERN UNITED 

 STATES. 



After.!. V. Lewis, Bulletin 11. North Carolina (Jeoloincal Snrvev. 



