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SEVENTY-FIRST C ONGRESS . SEss . II. CH . 497. 1930 . SCHEDULE a.
per centum ad valorem ; knitting, braiding, lace braiding, and Metals and manu- factures of . insulating machines, and all other similar textile machinery, finished or unfinished, not specially provided for, 40 per centum ad valorem
all other textile machinery, finished or unfinished, not specially provided for, 40 per centum ad valorem ; cream separators valued at mo re tha n $50 each, and o ther c entrif ugal machin es for the separation of liquids or liquids and solids, not specially provided for, 25 per centum ad valorem ; combined adding and typewriting machines, 30 per centum ad valorem ; apparatus for the generation of acetylene gas from calcium carbide, 20 per centum ad valorem ; machines for cutting or hobbing gears, 40 per centum ad valorem ; punches, shears, and bar -cutters, intended for use in fabricating structural or other rolled iron or steel shapes, 40 per centum ad valor em ; all othe r ma chin es, fini shed or unfi nish ed, not spec iall y P • is•not speciall y provided for, 271/2 per centum ad valorem : Provided, That parts, provided for .
not specially provided for, wholly or in chief value of metal or porcelain, of any of the foregoing, shall be dutiable at the same Mach ine to ols de- rate of duty as the articles of which they are parts : Provided fined . further, That machin e tool s as used i n this parag raph shall be held to mean any machine operating other than by hand power which employs a tool for work on metal . shovels, scythes, etc . PAR. 373. Shovels, spades, scoops, forks, hoes, rakes, scythes, sickles, grass hooks, corn knives, and drainage tools, and parts thereof, composed wholly or in chief value of metal, whether partly or wholly manufactured, 30 per centum ad valorem . Aluminum, metallic, PAR. 374 . Aluminum, aluminum scrap, and alloys (except those provided for in paragraph 302) in whic h aluminum is the component material of chief value, in crude form, 4 cents per pound ; in coils, plates, sheets, bars, rods, circles, disks, blanks, strips, rectangles, and squares, 7 cents per pound . Magn esi um, met al- lic
PAR. 375. Metallic magnesium and metallic magnesium scrap, 40 . cents per pound ; magnesium alloys, powder, sheets, ribbons, tubing, wire, and all other articles, wares, or manufactures of magnesium, not specially provided for, 40 cents per pound on the metallic magnesium content and 20 per centum ad valorem . Antimony .
PAR. 376 . Antimony, as regulus or metal, 2 cents per pound ; needle or liquated antimony, one-fourth of 1 cent per pound . Bism uth .
PAR. 377 . Bismuth, 71/2 per centum ad valorem . Cadmium .
PAR. 378 . Cadmium, 15 cents per pound . Arsenic, metallic .
PAR. 379 . Metallic arsenic, 6 cents per pound . German silver . PAR . 380 . German silver, or nickel silver, unmanufactured, 20 per centum ad valorem ; nickel silver sheets, strips, rods, and wire, 30 per centum ad valorem . Copper . PAR. 381 . Copper in rolls, rods, or sneets, 21/ 2 cents per pound ; copper engravers' plates, not ground, and seamless copper tubes and tubing, 7 cents per pound ; copper engravers' plates, ground, and Brass ° brazed copper tubes, 11 cents per pound ; brass rods, sheet brass, brass plates, bars, and strips, Muntz or yellow metal sheets, sheathing, bolts, piston rods, and shafting, 4 cents per pound ; seamless brass tubes and tubing, 8 cents per pound ; brazed brass tubes, brass angles Bronze,
and channels, 12 cents per pound ; bronze rods and sheets, 4 cents per pound ; bronze tubes, 8 cents per pound . Tin foil, aluminum PAR. 382 . (a) Tin foil less than six one-thousandths of one inch foil, etc. in thickness, 35 per centum ad valorem ; aluminum foil less than six one-thousandths of one inch in thickness, 40 per centum ad valorem ; bronze powder not of aluminum, 14 cents per pound ; alumi- num b ronze powder , pow dered foil, powder ed ti n, fli tters, and metallics, manufactured in whole or in part, 12 cents per pound ; bronze, or Dutch metal, or aluminum, in leaf, 6 cents per one hundred leaves ; bronze powder, or Dutch metal powder, or aluminum powder,
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