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The Trustees of the American Museum of Natural 

 History have the pleasure of presenting this, their 

 Twelfth Annual Report, to the Patrons, Fellows, and 

 Members of the Museum. 



In accordance with our purpose that some new 

 feature of usefulness shall be added to the institution 

 each year, we have the pleasure to state that through 

 the liberality of a member of our Board, Mr. Morris 

 K. Jesup, an Economic Department has been es- 

 tablished, which will contain specimens in Economic 

 Botany of all the woods of our country, that are or 

 may be used for architectural or building purposes, or 

 in the manufactures — as gums, resins, and dyewoods. 

 Each species will be fully illustrated by specimens of 

 the leaf, flower and fruit. The Museum has had the 

 good fortune to secure, free of charge, the able services 

 of Prof. Chas. S. Sargent, of Brookline, Mass., who is 

 now preparing for the Tenth U. S. Census, under Gen. 

 F. A. Walker, an elaborate report upon the Forest 

 Wealth of the United States. 



The specimens we are receiving will be fully de- 

 scribed by Professor Sargent and his able corps of 

 assistants, and will completely illustrate the scientific 

 and popular information that they are gathering and 

 placing in their volume of the Census Series, which is 

 soon to be issued in large numbers by the National 

 Government. Our collection will therefore have a 



