PLATE III. 



Fig. 22. — A "sinker," or more probably a hammer, from Napa, California, un- 

 polished. 



Fig. 23. — An unfinished charm stone, showing the method of working out the 

 ends. Central California. 



Fig- 25. — Finely polished, with head for attachment similar to Fig. 20. Cen- 

 tral California. 



Figs. 24 and 27. — Finely polished, originally similar to Fig. 6, from Alameda 

 County, California. 



Fig. 26. — Peculiar form, of hard slaty rock, unfinished? Alameda County Cali- 

 fornia. 



Fig. 28. — Of hard fine-grained rock, polished. Central California. 



