48 BULLETIN 296, U. S. DEPARTMENT OF AGRICULTURE. 
about one-third in 1914. The import value per pound decreased 
from slightly more than $1 in 1910 to 54 cents in 1914. Compared 
with other countries, this country exceeds all others in imports of 
this article. The balata rubber gum imported in 1910 amounted to 
399,000 pounds and increased to 1,533,024 pounds in 1914, nearly all 
of which came from Guiana and Venezuela. The guayule gum came 
from Mexico, and amounted to 19,749,522 pounds in 1911 and 
1,475,804 pounds in 1914. The gutta-joolatong or East India gum 
came from the Straits Settlements, and amounted to 24,926,571 
pounds, valued at $1,155,402, in 1914. The gutta-percha also came 
from the Straits Settlements, and amounted to 1,846,109 pounds, 
valued at $323,567, in 1914. 
The camphor gum was supplied by Japan, and is of two kinds — ■ 
crude and refined. In 1914 the imports of crude were 3,476,908 
pounds, valued at $929,715, and the refined amounted to 566,106 
pounds, valued at $182,790. The chicle gum (used largely for the 
manufacture of chewing gum) came from British Honduras, Mexico, 
and by way of Canada, and amounted to 8,040,891 pounds, valued at 
$3,012,458, in 1914. The chicle gum brought from Canada is a Hon- 
duran and Mexican product sent there to dry, as it dries best in a 
cold country. The drying process reduces the weight about one-half, 
which makes a saving in the duty. It is on the free list in Canada, 
but is dutiable in this country at 15 cents per pound in the crude 
state and 20 cents per pound dried or manufactured. The imports of 
copal, kauri, and damar gum amounted to 32,693,412 pounds, valued 
at $3,354,679, in 1914. The gambier or terra japonica gum came from 
the Straits Settlements and amounted to 14,936,129 pounds, valued 
at $571,067, in 1914. The gum shellac came from British India and 
amounted to 16,719,756 pounds, valued at $2,689,269, in 1914. 
MINOR FOREST PRODUCTS. 
In 1914 the exports of wood pulp were 26,961,254 pounds, valued 
at $529,741, and the imports were 1,138,727,195 pounds, valued at 
$17,023,338. The imports came from Canada and the exports went 
to Europe, yet those countries were the source of much more than 
they received. In 1914 the exports of tanning materials were valued 
at $666,880, while the imports were valued at $4,368,041. The dye- 
woods and extracts imported were valued at $793,926 in 1914. In 
1914 the value of the charcoal exported was $81,997, and the import 
value was $60,634. About 99 per cent of the cinchona bark (from 
which quinine is extracted) came through the Netherlands and 
amounted to 3,648,868 pounds, valued at $464,412, in 1914. The cork 
wood or cork bark imported in 1851 was valued at a little less than 
