PREFATORY NOTE 



It is the purpose of this Guide to call attention to the more important exhibits 

 that the visitor will see as he passes through the halls. More detailed information 

 regarding the specimens may be obtained from the labels or from the Guide Leaflets. 



It is frequently necessary to rearrange the exhibits in the halls in order to provide 

 space for new material which is continually being received or to put into effect 

 advanced ideas regarding methods of exhibition. In some instances therefore, 

 the arrangement described is not wholly that in existence at the date of issue of the 

 Guide, but rather what will be when certain installations now in progress are com- 

 pleted. This is true for the halls devoted to geology and invertebrate palaeontology 

 and to some extent in the exhibit of the Indians of the Woodlands and in those of 

 local mammals, mammals of the world and insects. The sergeants on each floor 

 will always direct the visitor to any collection on the given floor, 



American Museum of Natural History, November, 1911. 



WEST 



WING 



SOUTH 

 CENTRAL 



SOUTHWEST WING 



w 



Nfl- 



1st 



SOUTHEAST WING 



r 



O 



The halls are named according to the position they will have in the completed Museum 

 building, which will consist of four long fagades facing east, west, north and south respectively, 

 each connected with the center of the quadrangle formed, by a wing extending between 

 open courts. Thus the haU at the eastern end of the south facade (the only facade completed) 

 becomes the "southeast pavilion." 



