[21] BULLETIN 39, UNITED STATES NATIONAL MUSEUM. 



will result. An improvement of this is effected when the moving 

 thread in passing upward after interlocking is twined one or more 

 times about its standing part (fig. 31 A). 



Fig. 31. 

 cross sections of v.^.rieties in coiled basketey. 



B. Simple interlocking coils. — Coiled work in which there may be 

 any sort of foundation, but the stitches merelj^^ interlock without 

 catching under the rods or splints or grass beneath. This form easily 

 passes into those in which the stitch takes one or more elements of the 

 foundation, but in a thorough ethnological 



stud}^ small differences can not be over- 

 looked (fig. 31 B). Fig. 32 represents this 

 style of workmanship on a coiled basket 

 in grass stems from Alaska, collected by 

 Lucien M. Turner. The straws for sewing 

 merely interlock without gathering the 

 grass roll. 



C. Single-rod foundation. — In rattan 

 basketry and Pacific coast ware, called by 

 Dr. J. W. Hudson Tsai in the Pomo lan- 

 guage, the foundation is a single stem, 

 uniform in diameter. The stitch passes 

 around the stem in progress and is caught 



under the one of the preceding coil, as in fig. 31 C. In a collection 

 of Siamese basketry in the U. S. National Museum the specimens are 

 all made after this fashion; the foundation is the stem of the plant in 

 its natural state, the sewing is with splints of the same material, 



Fig. 32. 

 detair, of interlocking stitches. 



