INHERITANCE OF COAT-COLOR IN CATS Or, 
The light-ticked kittens probably inherited the factor A’ from 
their yellow father. That the male carries the factor A’ is 
shown by the fact that when crossed (45) with a black and 
orange (30) there were produced three males—a black and white 
in which there was so much white that it was impossible to de- 
termine the ghost pattern, a cream, showing stripes, and a blotched 
maltese in which the ticking stood out extremely clearly. The 
latter is being raised and differs decidedly in amount of ticking 
from many other blotched maltese cats in my possession. 
The long-haired cream male (8) was crossed twice (9 and 30) 
with a black female (20). Ten kittens were produced, all of them 
showing stripes as ghost pattern. The female is therefore aaBB. 
The cross may be expressed: @ aabb X 2 aaBB = 10 aaBb. 
The same male (8) was crossed (12) to a much ticked striped 
female (25). Of the four kittens produced two were non-ticked 
and showed stripes as ghost pattern and two were much ticked 
and striped. The cross may therefore be expressed: o aabb x 
@ A’aBB = 2 aaBb + 2 A’aBb. 
The same male was crossed (13) to a maltese female (17). 
Three dilute kittens resulted, all with blotched ghost pattern. 
o aabb X 2 aabb = 3 aabb. 
It is clear, then, that the cream male (8) does not carry the 
ticking factor, for when crossed. with two non-ticked females it 
has sired thirteen non-ticked kittens. It also probably is homo- 
zygous for blotched, although it does not show the pattern, for 
when crossed to a maltese female it sired three blotched kittens. 
It thus appears that the long-haired cream (8) does not carry 
agouti and does not show the blotched pattern, while the short- 
haired cream (24) carries strong agouti, A’, and shows the pat- 
tern. Whether the agouti factor tends to bring out the pattern 
more strongly in a cream may yet be an open question. I am 
inclined to think that the pattern is obscured to some extent in 
long-haired cats by the length of hair. 
An orange-striped male was crossed (37) to a blue and cream 
female (26) that showed ghost blotched pattern. Two orange- 
striped females resulted. The cross may be expressed: 
(BBY —)>x<-9 (bb. ¥y) = 2 (Bb. YY): 
