A. R. Galloway 
31 
2. Cinnamon, and cinnamon-bred hybrids, which frequently show charac- 
teristics of canary varieties arising de novo. 
3. The earliest canary literature. 
4. Collateral evidence of a similar nature in poultry and pigeons. 
II. " Dark-eye " and " Pink-eye " are found to. behave generally in Mendelian 
fashion, for from Group IV. (d. e. x d. e.) it is evident that there is a homozygous 
type of dark-eyed canary — also from 
Group IV. 2, 3, 4, it appears that there is also a heteroz3^gous or impure form 
occurring in the male as well as the female. The pink-eyed birds being homo- 
zygous, if we arrange our groups of matings according to Mendelian principles we 
find: 
Group III. d.e. y. p. e. 
Matings 33 Progeny 110 Dark-eyed 110 
In this group dark-eye is dominant, and pink-eye recessive. 
The following heterozygous matings : 
IV. 2. 
d. e. F. X d. e. F. 
Matings 5 
Progeny 21 
d.e. 15 
p. e. 6 
» 3. 
F. d. e. X d. e. 
3 
12 
9 
„ 3 
4. 
d. e. F. X d. e. 
4 
10 
8 
„ 2 
43 
32 
11 
The result closely approximates to 3:1. 
The following heterozygous x homozygous matings : 
III. 2. 
F. d. e. 
X p. e. 
Matings 1 
Progeny 3 
d. e. \ p.i 
3. 2 
„ 3. 
d. e. F. 
xp. e. 
3 
12 
„ 4 „ 
5. 
„ 4. 
F.d.e. 
X F.p. e. 
1 
2 
„ 0 „ 
2 
„ 5. 
d. e.F. 
X F. p. e. 
2 
<3 
1 
23 
10 
10 
This result gives the required 50 of each. 
One would expect the female of the homozygous type of dark-eyed canary to 
be homozygous as well as the male, and I have evidence of this in several of my 
females giving very large percentages of dark-eyed males when mated to pink-eyed 
males — the proportion of six to one occurring several times. It is probable that a 
homozygous dark-eyed female would be completely dominant over the cinnamon 
male, and that male dark-eyed progeny only would result. 
I can prove the occurrence of wild heterozygous males by the following most 
interesting result which I have just obtained, viz. a family of young greenfinches 
which are leaving their nest to-day (June 8th). The father is a wild caught bird 
which I selected as being of the colour which I tliink indicates a heterozygous 
nature not only in wild birds, but also in canaries, viz. a colour I call cinnamon- 
green. To any casual observer, however, the bird would pass as a normally coloured 
greenfinch. The mother is one of my pale cinnamon — almost creamy — white 
greenfinches already mentioned. The family of five consists of four of a cinnamon 
