COLUMBIAN HISTORICAL EXPOSITION AT MADRID 393 



Fig. 22. 



RUDELY CHIPPED SLATE SPECIMENS. 

 (a,l&amp;gt;,c) Costa Rica; (d) Wyoming; (e) Massachusetts; (/) North Carolina ; (&amp;lt;/) Alabama; (fcandt) Uruguay. 



Fig. 23. 



CHIPPED GROOVED AXE, MOUNTED IN ORIGINAL HANDLE. RECENTLY OBTAINED FROM MOKI INDIANS &quot;IN 



ARIZONA. 



Collection of the U. S. National Museum 



