30 GENERAL INDEX TO ANNUAL REPORTS [eth. ann. 48 



the utmost value to its user. I take this opportunity of expressing my 

 gratitude to them; but I wish it to be understood that they are in no 

 way responsible for any mistakes I may have made. 



I also must not forget to express my genuine appreciation of the 

 excellent indexing work of Mrs. Frances S. Nichols, without which 

 my labor would have been considerably increased. For indexing the 

 reports of the last few years I have done very little except to classify 

 and rearrange the work of Mrs. Nichols, with slight additions and 

 alterations here and there in order to obtain uniformity for the whole 

 work. 



I also wish to thank all the officials of the Bureau of American Eth- 

 nology with whom I came in contact during my frequent visits to 

 that institution for their unfailing courtesy and willing cooperation. 



BiREN BONNERJEA. 



Washington, D. C, December 25, 1931. 



