SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 97, NO. 1, PL. 9 



*^-,wmm 



c( 



y 



J 



,l-.v -/ 



tr? jr' 



ULUA BICHROME SHERDS. DEEPEST LEVEL. SANTA RiTA 



t, Lower Mayoid sherds on sterile sand layer above Ulua Bfchrome horizon. 



