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going species. The divisions of the leaves reach to the midrib, the 
leaves are rough-hairy, and the pods bristly. The seeds are pale yel- 
low and smooth. 
Collection and uses of seeds.—The seeds are to be collected in the 
Same manner as those of black mustard. White mustard seed has no 
odor in its entire state, and when water is added in grinding it the 
odor does not become so pronounced as in the case of black mustard, 
neither is the taste so pungent. 
In medicine mustard seeds are used principally in the preparation 
of plasters and poultices. They are used also in dyspepsia, and in 
large doses act as an emetic. 
Imports and prices.—The imports into the United States of black 
and white mustard together during the fiscal year ended June 30, 1903, 
amounted to 5,302,876 pounds. The price ranges from 3 to 6 cents 
per pound for both the black and white mustard seeds. 
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