35 
•49 Bluish gray, Caerulescente griseus, - - - - - - y. r.h. 
50 Middle brown, Brunneus, - - ------ y. n b. 
51 Full orange brown. Saturate aurantiaco brunneus, - y, r. b. 
52 Purplish gray, Violascente griseus, - - - - - - y. r.h. 
53 Full reddish brown. Saturate rubescente brunneus, - y. r. b, 
54 Brownish purple, Brunnescente violaceus, - - - y. R. b. 
55 Blackish green, Nigrescente viridis, ----- y. r. b. 
56 Brownish blue, Brunnescente cyaneus, - - - - y. r. b. 
57 Greenish black, Viridescente niger, - - - - - y. r. b. 
58 Blackish blue, Nigro cyaneus, - -------?/. r. b. 
59 Bluish black *, Caeruleo niger, - - - - - - - y. r. b« 
60 Full brown, Saturate brunneus, ------- v. r. b. 
61 Blackish blue purple, Nigro cyaneo violaceus, - - - ?/. r. b, 
62 Purplish black, Violascente niger, ------ y. r. b. 
63 Blackish purple, Nigro violaceus, --..__ y. r. p. 
a Yellowish white, Flavescente albus. 
b Reddish white, Rubescente albus. 
c Bluish white, Cterulescente albus. 
d Brownish white, Brunnescente albus. 
e Grayish white, Canescente albus. 
I intended to have had the light, middle, and full tints so as to 
consider the latter or full colour, as giving no other idea than that of a 
perfect yellow, red, and blue, so that the simple names flavus, ruber, 
and caeruleus might correspond, which now stand for the middle 
colours which are neither light nor strong, and must be considered 
as tints that are exactly betwixt the extremes ; yellow, for example, 
under these circumstances, is neither light nor full, and is not by any 
means to partake of any tinge of red or blue. Thus light yellow is 
yellow distinct, mixed with light or white in such a proportion that 
it has not another tint, as a little more white would somewhat obli 
terate or disguise it. The middle being a determined yellow, 
neither light nor strong. The full may be conceived as such an ac- 
* True black would be between this and brown, but nearest to bluish black. 
F 2 
