412 COLOURS, 



difficult to procure the genuine kind, which comes 

 from the East Indies. What is sold for Indian 

 red, is said to be chiefly made in this country. 



Venetian red is a nativ e red ochre, rather inclin- 

 ing to the scarlet than the crimson hue : it is not 

 far different in colour from the common Indian 

 red, and is a very good colour. 



Spanish'hrown is also an earthy substance, found 

 in the same state in which it is used ; it is nearly 

 of the same colour as Venetian red, but coarser. 

 It is only used for the commonest purposes. 



Light red, or burnt ochre. This is common 

 yellow ochre heated red-hot in the fire, till the 

 colour changes from yellow to a red. It is a very 

 excellent colour, both in water and oil, having the 

 quality in common with all the ochres, of standing 

 perfectly well. 



Red chalk. This is the same substance as is 

 used for drawing on paper, in the manner of a 

 crayon. It is very much like light red, and is used 

 instead of it, for some purposes. It stands per- 

 fectly well, and may be used both in water and oil. 



Burnt Terra Sienna. This colour is made by 

 calcining raw terra Sienna till it acquires a red 

 colour. It is of a very rich tint, and is much used 

 both in water and oil. It stands well in both. 



Blue Colours. 



Ultramarine is prepared from lapis lazxdi, by 

 calcining and washing it very clean. When ge- 

 nuine, it is an extremely bright blue colour, some- 

 what transparent both in oil and water, and stands 

 perfectly. On these accounts it is of the utmost 

 value, being excellent in every kind of painting, 



