Notes on Hawatian Petroglyphs. Ey 
mering or pecking with a beach pebble, as the measurements of 
the grooves might indicate. Previous observers have been wont 
to refer to the native stone adze as the cutting implement for the 
petroglyphs they were describing, but even if the stone adze could 
keep its edge when cutting into stone strata sometimes as hard as 
itself, there is nothing in the petroglyphs or within reason to de- 
FIG. 4. 

BIG AS 
monstrate why the workers should ignore a simple and effective 
tool like a pebble, which they could obtain anywhere without effort, 
in favor of the laboriously wrought stone adze. Dr. Brigham? has 
demonstrated the facility with which the natives could use the 
beach pebbles when working in stone, and the writer has seen 
natives of today hammer out their names or initials on a flat rock, 
in neat and symmetrical letters, with nothing but a small stone 
9 Hawaiian Stone Implements, Mem. B. P. B. M., vol. i. 
[261 ] 
