550 P. W. WHITING 
examination was not made of the other two. Ghost blotched 
was very much accentuated by the ashiness, but ghost striped 
did not appear especially so. It is probable for this reason 
that the-two doubtful ones were ghost striped. Of the other four 
the maltese was ghost striped, and the three steels were ghost 
blotched. 
The other pregnant female (2) was a black and white (a.M). 
She produced (4) four kittens—two black females upon which no 
record of ghost pattern was made, an ashy female with black 
extremities, and an ashy male with dark but not black extremi- 
ties. Sixty-six days after birth the ashy female had developed. 
into a steel black which clearly showed ghost-blotched pattern, 
and eighty days after birth the ashy male was maltese with 
ghost-blotched pattern very evident. 
Unfortunately, the inheritance of this peculiar ashy color 
could not be followed out at the time the kittens were on hand. 
I am, therefore, unable to say whether it represents the hetero- 
zygote for Siamese dilution. 
E. Banding and ticking 
a. Statement of factorial differences and description of characters. 
Ticking or agouti in cats, as in rodents, is characterized by yel- 
low bands on the hairs. It increases with age so that kittens are 
relatively less ticked than cats. I have tentatively considered 
the agouti factors as a series of triple allelomorphs—A’, much 
ticked, A, little ticked, and a, non-ticked, with dominance of 
A’ over A and a, and of A over a. 
The banding factors, I have also represented as triple allelo- 
morphs— 8’, lined, B, striped, and b, blotched. These factors 
affect the formation of yellow pigment, in a yellow cat (A or 
a.B.M.Y) forming bands of straw color alternating with orange. 
In a tortoiseshell tabby cat (A.B.M.Yy) the orange bands in the 
‘yellow spots’ are continuous with the black bands in the ‘black 
spots,’ while the straw-colored bands are continuous through both 
regions. In a tortoiseshell (a.B.M.Yy) alternate banding of 
straw and orange shows clearly in the ‘yellow spots,’ while the 
