xii PREFACE 
Stuart, Mrs. M. L. B. Stuart, Professor T. D. A. Cockerell, 
Mr. J. Rush Marshall, Mr. 'T. W. Smillie, Mr. Churchill 
H. Cutting, Hon. George F. Edmunds, Mrs. Lydia S. B. 
Hageman, and especially to Mr. Herbert A. Gill, and 
Mrs. Moncure Robinson, Sr., for assistance in various 
ways toward the preparation of this memoir. 
Ws. H. Datu 
SMITHSONIAN INSTITUTION 
December, 1914 
