1 3 2 Bulletin American Museum of Natural History. [Vol. XVIII, 



verse white stripes with green edges are rivers. Blue squares 

 in them are islands, and red rectangles are red soil or gravel. 

 Four narrow black lines are cracks in the ground. On tlie 

 flap, triangles represent mountains. 



Another bag is shown in Fig. 3 of Plate xxiv. Flat and 

 acute triangles mean, as in so many other cases, mountains 

 and tents. A diamond in the middle is both the navel and 

 a mountain. Dark-green (almost black) lines are creeks; 

 yellow lines, paths. 



On the back the unpainted surface represents the earth. 

 Three transverse stripes are paths. Colored marks in these 

 stripes are rocks. 



Fig. 4 of Plate xxiv shows a small berrying-bag. Small 

 triangles at the edges of the design on tlv front are hills. 

 Two very acute isosceles triangles are mountain-peaks. A 

 diamond between them is a round hill. Two lines travers- 

 ing the design longitudinally are streams. The red and yel- 

 low of which they are composed represent two kinds of bushes 

 or trees (red and yellow willow ?) growing along the banks. 

 The blue lines enclosing the design are hanea'''kaa" ("as far 

 as the eye can reach," or the horizon, probably equivalent 

 to the earth). 



On the back, narrow black lines are paths, and black spots 

 are clouds. 



Hide cases that are approximately cylindrical but taper 

 slightly toward the bottom, and are usually somewhat over 

 a foot long, are generally known as "medicine-cases" and 

 "feather-cases," and are used, as their names indicate, to 

 hold small shamanistic and ceremonial objects. They are 

 made of rawhide, which is not, however, white, as it is in 

 ordinary bags and in parfleches, but brown, perhaps from 

 having been smoked. There are in the Arapaho collection of 

 the American Museum of Natural History three flat rectangu- 

 lar rawhide bags that are also brown; but all three of these 

 were used, like the cylindrical cases, to hold medicine or 

 ceremonial objects. 



The most frequent painting on the cylindrical medicine- 

 cases is a pattern of inverted tents. There may be either 



