jan. 6, 1923 Occurrence of Methyl Anthranilate in Grape Juice 49 
a. varieties which gave a strong reaction for methyl anthranilate 
Concord (V. labrusca). —This is regarded as a pure-bred labrusca. The berries are 
black with a blue bloom. It is the most widely grown of the grapes of this continent, 
and furnishes 75 per cent or more of the grapes of eastern America. Grape juice is 
made almost entirely from this fruit, and since the European grape does not make a 
good unfermented juice the industry is subject to no competition from California or 
Europe. 
Eaton (V . labrusca). —This is considered to be a pure-bred seedling of the Concord 
variety. The berries are large and black and are covered with a heavy blue bloom. 
Worden (V. labrusca ).— An offspring of the Concord grape. The berries vary 
from dark purplish black to black and are covered with a heavy blue bloom. 
Niagara ( labrusca-vinijera hybrid).—One of the parents of this grape is the Concord. 
The berries are light green and are covered with a thin gray bloom. 
Martha (possibly a labrusca-vinijera hybrid).—This is a seedling of the Concord, 
which it resembles greatly but from which it differs in several particulars. The 
berries are light green with a tinge of yellow and are covered with a thin gray bloom. 
Ives (possibly a labrusca-aestivalis hybrid).—The berries are jet black and are 
covered w T ith a moderate amount of blue bloom. 
Delaware ( labrusca-bourquiniana-vinifera hybrid).—The berries vary from small 
to medium, are light red, and are covered with a thin lilac bloom. 
Montefiore ( riparia-labrusca hybrid).—The berries are black and glossy and are 
covered with an abundant blue bloom. 
Missouri Riesling ( riparia-iabrusca hybrid).—The berries are pale or yellowish 
green, changing to light red or having a tinge of pink when fully ripe, and are covered 
with a thin gray bloom. 
B. varieties which gave a slight but distinct reaction for 
methyl anthranilate 
Pocklington (V. labrusca). — A so-called white grape and seedling of the Concord. 
The berries are yellowish green and are covered with a thin gray bloom. 
LucilE (V. labrusca). —The berries are dark red and are covered with a thin lilac 
bloom. 
Vergennes (V. labmsca). — The berries are either light red or dark red and are cov¬ 
ered with a lilac bloom. 
Brighton ( labrusca-vinijera hybrid).—The berries are either light red or dark red 
and are covered with a dark lilac bloom. 
Campbell Early ( labrusca-vinijera hybrid).—The berries are dark purplish black 
and are covered with a heavy blue bloom. 
Woodruff Red (possibly a labrusca-vinijera hybrid).—This has been supposed to 
be a cross of the Catawba and Concord grape. The berries are dark brick red and are 
covered with a thin lilac to faint blue bloom. 
Bindley ( labrusca-vinijera hybrid).—The berries are dark brick red and are covered 
with a lilac or faint blue bloom. 
Herbert ( labrusca-vinijera hybrid).—The berries are a rather dull black and are 
covered with a thick blue bloom. 
Diamond ( labrusca-vinijera hybrid).—The berries are green and are covered with a 
thin gray bloom. 
Merrimac (labrusca-vinijera hybrid).—The berries are black and glossy and are 
covered with an abundant blue bloom. 
Agawam (labrusca-vinijera hybrid).—The berries are dark and dull purplish red, 
somewhat resembling the Catawba, and are covered with a lilac bloom. 
Wilder (labrusca-vinijera hybrid).—The berries are large, purplish black to black, 
and are covered with a heavy lilac bloom. 
Barry (labrusca-vinijera hybrid).—The berries are large, dark purplish black to 
black, and are covered with a heavy blue bloom. 
Perkins (labrusca-vinijera hybrid).—The berries vary from large to medium, are 
dull green, changing to pale lilac or light red when fully ripe, and are covered with a 
rather abundant gray or lilac bloom. 
Isabella (labrusca-vinijera hybrid).—The berries vary from medium to large, are 
deep black, and are covered with considerable blue bloom. 
Early Victor (possibly a labrusca-bourquiniana hybrid).—The berries are dark 
purplish black and are covered with a heavy blue bloom. 
Brilliant (labrusca-vinijera-hourquiniana hybrid).—The berries are dark red, 
rather glossy, and are covered with an abundant lilac bloom. 
