with regard to Colours. 



259 



Colours proposed for 

 Observation. 



Perceptions of the proposed Colours. 



BLACK. 

 BLUE. 



PURPLE. 

 GREEN. 



ORANGE. 



RED. 



BROWN. 



Generally Green, in particular cases Crimson. 



Darker kinds, Crimson and Black. Those of a middle 

 tone Carmine and Lake. Those of a lighter kind 

 able in general to distinguish. 



Appeared to be Blue, excepting in the case of a very 

 bright Purple. 



Confounded in general with Black and Brown. Greens 

 of a darker kind appeared Brown. Those of a middle 

 tone uncertain as to name. Greens of a lighter kind 

 Dark-Yellow. 



Darker kinds Brown. Lighter kinds Yellow. 

 Carmine, Lake, and Crimson appeared Blue. 

 Green. 



Since the above was written, the following circumstance oc- 

 curred. He was sent to obtain some patterns of green baize, and 

 having procured five varieties, placed them on his return in the 

 shop-window. In the course of the day, his master caUed on 

 him, to state the prices of the patterns he had obtained, at the 

 same time placing before him two pieces of crimson cloth, and 

 three of the green baize, and he, unconscious of the difference, 

 fixed prices on each. 



On being informed of the circumstance, I prepared two ex- 

 cellent specimens of the above colours, and placed them before 

 him, first on a white ground, secondly on a yellow ground, and, 

 lastly, on one of a green colour, and, in each case, he regarded 

 the two colours, to use his own words, " as well matched." * 



* A philosophical friend who was present, placed the colours under several dif- 

 ferent circumstances, but with the same uniformity of effect. 



