1.  These links contain photographs of the Igorot and Negrito exhibits in St. Louis.  Click through and view each image, enlarging when possible.  What kinds of activities do they show?

 http://www.loc.gov/pictures/related/?fi=subject&q=Igorot%20(Philippine%20people)--Exhibitions--Missouri--Saint%20Louis--1900-1910. 

2.  This is a commercial site that is still selling postcards from the exhibit!.  Click and enlarge each one.

http://www.collect-sell.com/?s=The+1904+St.+Louis+World%E2%80%99s+Fair+Philippines+Exhibit&submit.x=0&submit.y=0

http://www.collect-sell.com/?s=The+1904+St.+Louis+World%E2%80%99s+Fair+Philippines+Exhibit&submit_x=0&submit_y=0&paged=2

3.  Although I wish this website focused more on Philippines exhibit, it does give a good sense of the overall atmosphere.  Click through all the slides:

http://lpe.slpl.org/col/2_3.html