32 On the Vision of Colours. 
except that the red extremity of the image appears 
more vivid than that of the solar image. 
I now proceed to state the results of my observa- 
tions on the colours of bodies in general, whether 
natural or artificial, both by day-light and candle- 
‘ light. I mostly used ribbands for the artificial 
colours. 
RED, 
(By day-light.) 
Under this head I include crimson, scarlet, red, - 
and gink. - All crimsons appear to me to consist 
chiefly of dark blue; but many of them seem to 
have a strong tinge of dark brown. _I have seen 
‘specimens of crimson, claret, and mud, which 
were very nearly alike. Crimson has a grave ap- 
pearance, being the reverse of every shewy and 
splendid colour. Woollen yarn dyed crimson or 
dark blue is the same tome. Pink seems to be 
composed. of nine parts of light blue, and one of 
red, or some colour which has no other effect 
than to make the light blue appear dull and faded a 
little. Pink and light blue therefore compared to- 
gether, are to be distinguished no otherwise than as 
a splendid colour from one that tias-lost a little of 
its splendour. Besides the pinks, roses, &c. of the 
gardens, the following British flora appear to me 
blue; namely, Statice Armeria, Trifolium pratense, 
Lychnis Flos-cuculi, Lychnis dioica, and many of the 
Gerania. The colour of a florid complexion ap- 
