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8 
guish colours, hopes that he will not be 
thought altogether unqualified for such 
an undertaking. He does not pretend 
indeed that it is his own idea ; for, so far 
as he knows, Werner is entitled to the 
honour of having suggested it. This 
great mineralogist, aware of the import- 
ance of colours, found it necessary to 
establish a Nomenclature of his own in 
his description of minerals, and it is as- 
tonishing how correct his eye has been ; 
for the author of the present undertaking 
went over Werner's suites of colours, be- 
ing assisted by Professor Jameson, who 
was so good as arrange specimens of the 
suites of minerals mentioned by Werner, 
