^ 



v-^\ 



SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOLUME 68, NUMBER 12 



EXPLORATIONS AND FIELD-WORK OFTHE 



SMITHSONIAN INSTITUTION 



IN 1917 







(Publication 2492) 



SEP 03 ^987 



CriY OF WASHINGTON 



PUBLISHED BY THE SMITHSONIAN INSTITUTION 



JUNE, 1918 



