[2] Preliminary. Source: Foreign Commerce and Navigation of the United States. TABLE 53.—_Crude glycerin: United States imports (for consumption) from Philippine Islands 1925-37_ -------------+-------------+--------------+-------+---------- Calendar year| Rate of duty| Quantity | Value |Unit value -------------+-------------+--------------+-------+---------- | |_1,000 pounds_| | 1925 |Free | 16| $1,418| $0.089 1926 | do | 95| 12,115| .128 1927 | do | 159| 18,261| .115 1928 | do | 337| 24,327| .072 1929 | do | 250| 16,796| .067 1930 | do | 279| 18,805| .067 1931 | do | 180| 10,993| .061 1932 | do | 198| 9,150| .046 1933 | do | 268| 14,078| .052 1934 | do | 181| 14,984| .083 1935 | do | 1,579| 74,798| .047 1936 | do | 304| 32,708| .108 1937[1] | do | 793|145,348| .183 -------------+-------------+--------------+-------+---------- [1] Preliminary. Source: Foreign Commerce and Navigation of the United States. France has usually been the principal source of imports of crude glycerin, but since 1935 Cuba has ranked first. Cuban imports enter at a preferential rate of duty (0.8 cent per pound on crude until September 3, 1934, when it was reduced to 0.4 cent). Receipts from the Philippines are duty-free. Imports by countries for recent years are given in table 98, page 151. The Netherlands has generally been the chief source of imports of refined glycerin, although the United Kingdom was first in 1934 and 1935 and France first in 1937. Imports by countries for recent years are given in table 99, page 152. United States exports. Exports of glycerin are insignificant compared with production and are small compared with imports. They go chiefly to Mexico and Canada, and, at times, also to Cuba, the Philippines, and Chile. Geographic propinquity is probably the principal factor accounting for these exports, although it is possible that some exports are destined to foreign branch factories of an American company for making dynamite. Crude and refined grades were not separately distinguished in export statistics, but it is known that exports consist principally, if not entirely, of the refined. In 1933 and 1934 glycerin exports were not reported. Statistics of exports are given in table 54. TABLE 54.—_Glycerin: United States exports, in specified years, 1919-37_