X6 NOMENCLATURE 



Jo-). Its varieties are the lead-grey {plumhcus)y which ap- 

 proaches near to the bhiish; ami the smoke-grey {lubidosus), 

 which goes more into a brown. The mouse-grey al$o (rnwi- 

 iius) is a soiled variety of the brownisli-grey. 



3. The black colour {n'lgcr) has as its ground-tone the full 

 or coal-black {ater). In Greek compounds we express this 

 bv the words mela- or melanv-. 



If the black passes somewhat into a greenish, it is called 

 raven-black {pullus) ; if it passes into a brownish, it is called 

 pitch-black {p\ccus~). 



4. The brown colour {hrunncus) has as its ground-tone 

 the chesnut-brown (hadius). If it falls more into the red, it 

 is reddish-brown (fiiscus, in Greek compounds jo/z^o-). If 

 it goes more into a yellow, it is liver-brown ; and when a mix- 

 ture of reddish is added, it becomes rust-coloured (ferrugi- 

 neus). 



If the brown colour is pure and somewhat splendent, it is 

 said to be spadiceus. If it is quite dirty, and passing into 

 black, it is said to be smoky {fidigineus). If along with this 

 smoky state, it is also mixed with undefined shadings of co- 

 lour, it is said, generally, to be lurid {luridus'). 



5. The yellow colour {luteus, in Greek compounds xantho-,) 

 has as its ground-tone the golden-yellow {aureus^ in Greek 

 compounds chryso-). This is the same with the citron-yellow 

 ^citrinus). 



A paler shade is denominated, generally, Jlavus. More 

 exactly defined vaiieties are the wax-yellow (cerinus), the 

 sulphur-yellow (sidphureus), and last the straw-yellow (stra- 

 mineus)^ which approaches pretty much to the white colour, 

 and is hence denominated by a Greek compound ochroleucus. 

 The dark-yellow approaches either to the red or to the brown. 

 It is generally called taicny (fulvus). Dark-yellow, with 

 reddish-brown, is called hclvoliis. Aurantiacus, is dark-yel- 

 low, passing somewhat into a reddish. Saffron -yellow {cro- 

 ceu^) is the distinctly intermediate colour between red and yel- 

 low- 



If the yellow is soiled and pale, it is called Isabella colour, 

 and ochre-yellow (ochreus). If along with its dirty appear- 



