556 P. W. WHITING 
about the grade of ticking as that shown in figure A. If my 
hypothesis of the allelomorphism of the agouti factors is correct, 
these striped kittens must represent a light variation in the 
dark agouti. In the case of these kittens the light color may be 
due to silvering, as there is practically no yellow in the fur of 
either of the striped, although the lned shows a fair amount. 
The cross may be represented: & AAB’b x 2? aaBB = 1 
AaB’B + 2 AaBb. 
A highly ticked blotched male (11) was crossed (14) with a 
black female (15). Four highly ticked blotched kittens similar 
to figure F resulted. The cross may be represented: @ A’A’bb X 
2 aabb = 4 A’abb. The same male was later crossed (25) 
with a maltese striped female (4). Three intense striped and 
two intense blotched resulted. Unfortunately, the grade of the 
ticking was not determined. 
A very dark striped female (3) was crossed (16) to a very dark 
blotched male (6). Six kittens were produced—two blotched, 
three striped, and one black showing stripes as ghost pattern. 
The blotched and two of the striped were dark. The other 
striped was slightly lighter. It was not, however, as light as 
those that are grouped as much-ticked. It shows clearly, never- 
theless, that ticked cats may produce offspring apparently more 
ticked than themselves. The cross may be represented: <7 
Aabb X ? AaBb = 3 AA or AaBb + 2 AA or-Aabb + 1 aaBb. 
The same dark-striped female (3) was crossed (33) with a long- 
haired cream male (8) which appeared from other crosses to be 
homozygous for blotched and for non-agouti. The two kittens 
were a blue and cream female showing blotched as ghost pattern 
and a dark-striped male. The latter has grown up and shows 
exactly the same dark coat-color as his mother. The cross may 
therefore be represented: #@ (aa.bb.mm.Y—) xX 2 (Aa.Bb.- 
Mm.yy) = 1 &% (Aa.Bb.Mm.y—) +1 2 (aa.bb.mm.Yy). 
The dark-striped female (3) was mated twice (34 and 49) with 
a short-haired cream blotched male (24) and produced nine kit- 
tens as follows: Males, 1 a.B.M.y., 2 a.B.m.y., 1 A’.B.ML.y., 1 
a.b.m.y. Females, 1 A’.B.m.Yy., 2 a.b.m.Yy., 1 A.b.M.Yy. 
