HARRINGTON] DESCRIPTION OF THE ARTIFACTS 161 
Tip fragment of hinge bead, 29 mm. long, 6 mm. diameter. Hole 1.5 mm. 
diameter. 
Rock-OyYSTER CYLINDRICAL BEADS 
In addition to the hinge beads just described there is another 
type of bead cut from the rock-oyster shell which does not have the 
transverse notch, but which appears to imitate as nearly as possible 
the white cylindrical bead, size and shape being of course restricted 
by the comparative thinness of the rock-oyster shell in contradis- 
tinction tc that of the Pismo clamshell. These beads have been 
termed cylindrical beads of rock-oyster shell. Many of them have 
an almost scarlet color and must have made handsome necklaces 
when new. 
End fragment of rock-oyster cylindrical bead, 21 mm. long, 5.5 mm. diam- 
eter. Hole 1.5 mm. diameter. 
Rock-oyster cylindrical bead, 35 mm. long, 5 mm. diameter. Hole 1 mm. 
diameter. 
Rock-oyster cylindrical bead, 24 mm. long, 6.5 mm. diameter. Hole 1 mm. 
diameter. 
Rock-oyster cylindrical bead, 34.5 mm. long, 5 mm. diameter. Hole 1 mm. 
diameter. 
Rock-oyster cylindrical bead, 8.5 mm. long, 3.5 mm. diameter. Hole 0.75 
mm. diameter. 
Rock-oyster cylindrical bead, 21 mm. long, 5 mm. diameter. Hole 0.75 
mm. diameter. 
Rock-oyster cylindrical bead, 15 mm, long, 4 mm. diameter. Hole 0.75 
mm. diameter. 
Rock-oyster cylindrical bead, 14 mm. long, 3.5 mm. diameter. Hole 1.5 
mm. diameter. : 
Rock-oyster cylindrical bead, 34 mm. long, 5.5 mm. diameter. Hole 1 mm. 
diameter. 
Rock-oyster cylindrical bead, 17.5 mm. long, 3.5 mm. diameter. Hole 0.75 
mm. diameter. 
Rock-oyster cylindrical bead, with bushing at both ends; 20.5 mm. long, 
4 mm. diameter. Hole 1 mm. diameter. 
Central or possibly tip fragment of rock-oyster cylindrical bead, 19 mm. 
long, 6 mm. diameter. Hole 2 mm. diameter. 
Rock-oyster cylindrical bead, 16 mm. long, 4 mm. diameter. Hole 2 mm. 
diameter. 
Rock-oyster cylindrical bead, 15 mm. long, 3 mm. diameter. Hole 1 mm. 
diameter. 
Rock-oyster cylindrical bead, 9 mm. long, 3 mm. diameter. Hole 1 mm. 
diameter. 
Rock-oyster cylindrical bead, 18.5 mm. long, 4 mm. diameter. Hole 1 mm. 
diameter. 
Rock-oyster cylindrical bead, 13 mm. long, 4 mm. diameter. Hole 1 mm. 
diameter. 
Rock-oyster cylindrical bead, 17.5 mm. long, 4 mm. diameter. Hole 1.25 mm. 
diameter. 
Rock-oyster cylindrical bead, 20 mm. long, 3.5 mm. diameter. Hole 1 mm. 
diameter. 
