6 MEXICO AND CENTRAL AMERICA 



Morris K. Jesup, James H. Jones, Minor C. Keith, 

 the Duke de Loubat, William Mack, Henry Mar- 

 quand, Dr. William Pepper, A. D. Straus, I. Mel. 

 Strong, Cornelius Vanderbilt, Henry Villard, William 

 C. Whitney. But thanks are also due to innumerable 

 persons who have contributed single specimens and 

 small collections as well as those who have placed in- 

 formation at the disposal of the scientific staff. The 

 principal collectors have been: George Byron Gordon, 

 Ales Hrdlicka, Carl Lumholtz, Francis C. Nicholas, 

 Marshall H. Saville, Eduard Seler, Herbert J. Spinden, 

 and John L. Stephens. 



