NO. 4 COOPERATIVE WORK OF THE INSTITUTION 25 



in the preparation of a book on the natural resources of Pennsyl- 

 vania, prepared expressly for and presented to the seventh and 

 eighth grade geography teachers of the state. The book is an ap- 

 plication of the Museum's methods to a single state, and, as far as 

 possible, the data are derived from the Museum's exhibits. 



The Division of Textiles presents another phase of the important 

 resources and industries of the United States. The collections, by 

 their accurately recorded data, have served individual firms for set- 

 tlement of patent litigation ; have been used to illustrate the arguments 

 of trade associations before the Ways and Means Committee in Con- 

 gress ; and are at all times available as reference materials for the 

 use of the Tarifif Commission or others presenting technical questions 

 to legislative bodies. The division acts in cooperation with other 

 Government bureaus in doing for them certain propaganda work in 

 bringing their aims before the public by means of specially prepared 

 exhibits ; in preserving for them valuable historical materials which 

 must be often consulted and in which the public has an interest ; and 

 in the identification of commercial raw materials. It cooperates with 

 trade associations, corporations, and individuals in the presentation 

 of exhibits illustrating the industries of the United States. 



The Diinsion of Medicine cooperates with all agencies by the visual 

 presentation of the most recent advances in sanitary science and the 

 health of man ; with the National Medical Associations in the de- 

 velopment and presentation of educational exhibits illustrating the 

 history of medicine and pharmacy in America, and the part played 

 therein by different schools of thought and practice ; and with the 

 War Department in the identification of narcotic drugs. 



The Division of Graphic Arts cooperates mostly with manufactur- 

 ers and others to increase and perfect educational exhibits in which 

 the technical as well as the artistic side of the various processes and 

 trades known as the graphic arts are displayed. 



Bureau of American Ethnology 



Other branches of the Government, the U. S. Supreme Court, both 

 branches of Congress, educational and scientific institutions, and 

 hundreds of individuals all over the world, have called on this Bureau 

 for ethnological information. Its library is used constantly for study 

 and consultation by students ; exhibits have been prepared for vari- 

 ous expositions ; and the following detailed list covers some of its 

 cooperative undertakings. 



