aie 
chestnuts the coat color is due to the 
red pigment alone, but the restriction 
factor is also present. Since there is 
no black pigment present in these ani- 
mals this factor cannot exert itself until 
the black pigment is brought into the 
cross by the other parent, as in the case 
of black by sorrel matings.” 
INFORMATION WANTED 
One point which might prove of value 
in determining the difference, if there 
be any, in the pigment which produces 
sorrel and that which produces chestnut 
is this: Are the bay animals from sorrel 
by black matings lighter in color than 
the bays from chestnut by black 
matings? Information pertaining to 
this point will be gratefully accepted. 
The appearance of roan offspring 
from most of the tabulated crosses, as 
well as the three bays resulting from 
The Journal 
of Heredity 
the chestnut by sorrel cross cannot be 
accounted for, except by mistakes in 
the records as previously mentioned. 
The fact that the sorrel by sorrel 
cross gives sorrel offspring in practically 
100% of the cases is rather definite 
proof that sorrel is a unit character, 
and further, that it is recessive to all 
other colors. Therefore, the breeder 
who is desirous of producing sorrel 
animals has an easier task than the one 
who desires to produce animals of a 
color other than sorrel. The former 
will be certain of getting sorrel colts as 
long as he has a sire and dam of sorrel 
color, while the latter cannot be certain 
of the results from the cross of any other 
color. With sorrels becoming rather 
popular, especially among pleasure 
horses, this point will doubtless be of 
some value to those who make a 
business of producing such animals. 
A Magnificent Flowering Vine 
Camensia maxima, discovered by 
Welwitsch in tropical Africa, has pro- 
bably the largest flowers of any of 
the Leguminose. Blossoms produced 
under glass by the Department in 
Washington were illustrated in the 
American Breeders’ Magazine, IV, p. 
212, December, 1913. Robert M. Grey 
of the Soledad Sugar Co., Cienfuegos, 
Cuba, who has been growing this vine 
in the open air, writes: ‘‘The clusters 
of flowers are beautiful, large and the 
gilt-edged petals appear hand painted. 
The change of this tracery from gold 
to brown on the second day is equally 
remarkable. The aromatic fragrance 
which can be detected 20 or more feet 
distant is very agreeable. 
“The Camcensia vine 1s growing in 
rather clayey soil with a reddish rotten- 
stone subsoil, on a dry situation, but gets 
abundant water during our wet season 
and is occasionally watered during the 
winter or dry season, but stands con- 
siderable drought without injury. It 
will grow in full sun, also full shade, 
but makes more luxuriant foliage where 
partly shaded. Flowers are produced 
several times annually. I believe the 
vine could be acclimatized in the ham- 
mocks of southern Florida with little or 
no trouble and the natural distribution 
of its seeds would cause it to spread 
rapidly.” 
Members of this association who are 
in a position to grow this vine, either 
under glass or out of doors, can pro- 
bably secure seed by communicating 
with the Office of Foreign Seed and 
Plant Introduction, U. 5. Department 
of Agriculture, Washington, D. C. 
Eugenics Research Association 
Dr. Adolf Meyer, director of the 
Phipps Psychiatric Clinic, Baltimore, 
was elected president of the Eugenics 
Research Association, at its annual 
meeting in Cold Spring Harbor, 
L. I. William F. Blades was contin- 
ued as_ secretary-treasurer of the 
Association. 
