Ridgway colors again

[Rodham E. Tulloss]

Sometime back there was an exchange on the relfector concerning
Munsell or other equivalents for the Ridgway color names.

I cited Hamly (1949) as the reference that I have used for this
translation between Munsell and Ridgway.

Last night, I think I found an error in this work:
Ridgway's Smoke Gray is said to be equivalent to 5Y 6.8/2.0 ...
a color with far to much yellow in it.  Perhaps, 5Y 6.8/1.0 was
intended.  Does anyone know of a list of errata for Hamly or of
a second refence of this type?

Very best,

Rod Tulloss