SIXTY-FIRST CONGRESS. Sess. I. Ch. 6. 1909. 65 willow, osier, rattan, cuba bark, or manila hemp, whether wholly or Su§‘,‘j,§g’S‘jf·(§0,l§,,. partly manufactured, but not trimmed, thirty-five per centum ad valorem; if trimmed, fifty per centum ad valorem. But the terms "grass" and "straw" shall be understood to mean these substances iii; their natural form and structure, and not the separated fiber t ereo . 423. Brushes, brooms, and feather dusters of all kinds, and hair B’““h°“·"'°°“’S·°‘°· pencils in quills or otherwise, forty per centum ad valorem. _ 424. Bristles, sorted, hunched, or prepared, seven and one-half B"’°l°“‘ cents per pound. 425. Trousers buckles and waistcoat buckles, made wholl or B"°"’°*‘· partly of iron or steel, or parts thereof, valued at not more than fifteen cents per hundred, five cents per hundred ; valued at more than fifteen cents per hundred and not more than fifty cents per hundred, ten cents per hundred; valued at more than Efty cents per hundred, fifteen cents per hundred; and in addition thereto on each and all of the above buckles or parts of buckles, fifteen er centum ad valorem. 426. Button forms of lastings, mohair or sillk cloth, or other manu- B°“°¤ ‘°¤¤¤· factures of cloth, woven or made in patterns of such size, shape or form as to be fit for buttons exclusively, and not exceeding three inches in any one dimension, ten per centum ad valorem. 427. Buttons or parts of buttons and button molds or blanks, B““°“‘* ' finished or unfinished, shall pay duty at the following rates, the linebutton measure being one-fortieth of one inch, namely: Buttons known commercially as agate buttons, metal trousers buttons (except steel), and nickel bar buttons, one—twelfth of one cent per line per gross; buttons of bone, and steel trousers buttons, one-fourth of one cent per line per gross; buttons of pearl or shell, one and onehalf cents per line per gross; buttons of horn, vegetable ivory, glgss, or metal, not specially provided for in this section, three-fourt of one cent per line EI gross, and in addition thereto, on all the foregoing articles in t paragraph, fifteen per centum ad valorem; shoe uttons made of pappr, card, fpier-maché, pulp or other similar material, not speeia y provideclm or in this section, valued at not exceeding three cents per gross, one cent per gross; snap fasteners, or clasps, or parts thereof, by whatever name known, fifty (per centum ad valorem; buttons of metal, embossed with a design, evice, pattern, or lettering, forty-five per centum ad valorem; buttons not specially provided for in this section, and all collar or cuff buttons and studs composed wholly of bone, mother-of-pearl, or ivory, fifty per centum a valorem. 428. Coal, bituminous, and shale, forty-five cents per ton of B""”’*"°““ °°“‘· twenty-eight bushels, eiglhty pounds to the bushel; coal slack or culm, such as will pass t roug a half-inch screen, fifteen cents er ton of twenty-eight bushels, eighty pounds to the bushel: Promd ed, gmk dg That the rate of fifteen cents per ton herein designated for "coal Hum. slack or culm " shall be held to ap ly to importations of coal slack or culm produced and screened in the ordinary way, as such, and so shipped from the mine; coke, twenty per centum ad valorem; com- et§¤k·>· ¤¤¤>r><>¤i¤¤¤¤· positions used for fuel in which coal or coal dust is the component ma- ` terial of chief value, whether in briquettes or other form, twenty per centum ad valorem: Provided further, That on all coal imported into fo}’f;,“;*;;,‘;*;hi‘v€‘ggg the United States, which is afterwards used for fuel on board vessels intoreign mae. ` propelled by steam and engaged in trade with foreign countries, or in trade between the Atlantic and Pacific ports of the United States, and which are registered under the laws of the United States, a drawback shall be allowed equal to the duty imposed by law upon such coal, and shall be paid under such regulations as the Secretary of the Treasury shall prescribe.