488. Amber, and amberoid unmanufactured, or crude gum, gum Kauri, and gum Copal.

489. Ambergris.

490. Ammonia, sulphate of.

491. Aniline salts.

492. Any animal imported by a citizen of the United States specially for breeding purposes shall be admitted free, whether intended to be so used by the importer himself, or for sale for such purpose: Provided, That no such animal shall be admitted free unless pure bred of a recognized breed, and duly registered in the book of record established for that breed: And provided further, That certificate of such record and of the pedigree of such animal shall be produced and submitted to the customs officer, duly authenticated by the proper custodian of such book of record, together with the affidavit of the owner, agent, or importer that such animal is the identical animal described in said certificate of record and pedigree: And provided further, That the Secretary of Agriculture shall determine and certify to the Secretary of the Treasury what are recognized breeds and pure bred animals under the provisions of this paragraph. The Secretary of the Treasury may prescribe such additional regulations as may be required for the strict enforcement of this provision. Cattle, horses, sheep, or other domestic animals straying across the boundary line into any foreign country, or driven across such boundary line by the owner for temporary pasturage purposes only, together with their offspring, may be brought back to the United States within six months free of duty, under regulations to be prescribed by the Secretary of the Treasury: And provided further, That the provisions of this Act shall apply to all such animals as have been imported and are in quarantine, or otherwise in the custody of customs or other officers of the United States, at the date of the passage of this Act.

493. Animals brought into the United States temporarily for a period not exceeding six months, for the purpose of breeding, exhibition or competition for prizes offered by any agricultural, polo, or racing association; but a bond shall be given in accordance with regulations prescribed by the Secretary of the Treasury; also teams of animals, including their harness and tackle and the wagons or other vehicles actually owned by persons emigrating from foreign countries to the United States with their families, and in actual use for the purpose of such emigration under such regulations as the Secretary of the Treasury may prescribe; and wild animals intended for exhibition in zoclogical collections for scientific and educational purposes, and not for sale or profit.

494. Annatto, roucou, rocoa, or orleans, and all extracts of. 495. Apatite.

496. Arrowroot in its natural state and not manufactured. 497. Arsenic and sulphide of arsenic, or orpiment.

498. Arseniate of aniline.

499. Articles in a crude state used in dyeing or tanning not specially provided for in this section.

500. Articles the growth, produce, or manufacture of the United States, not including animals, when returned after having been exported, without having been advanced in value or improved in condition by any process of manufacture or other means; casks, barrels,

carboys, bags, and other containers or coverings of American manufacture exported filled with American products, or exported empty and returned filled with foreign products, including shooks and staves when returned as barrels or boxes; also quicksilver flasks or bottles, iron or steel drums used for the shipment of acids, of either domestic or foreign manufacture, which shall have been actually exported from the United States; but proof of the identity of such articles shall be made, under general regulations to be prescribed by the Secretary of the Treasury, but the exemption of bags from duty shall apply only to such domestic bags as may be imported by the exporter thereof, and if any such articles are subject to internalrevenue tax at the time of exportation, such tax shall be proved to have been paid before exportation and not refunded; photographic dry plates or films of American manufacture (except moving-picture films), exposed abroad, whether developed or not, and films from moving-picture machines, light struck or otherwise damaged, or worn out, so as to be unsuitable for any other purpose than the recovery of the constituent materials, provided the basic films are of American manufacture, but proof of the identity of such articles shall be made under general regulations to be prescribed by the Secretary of the Treasury: Provided, That this paragraph shall not apply to any article upon which an allowance of drawback has been made, the reimportation of which is hereby prohibited except upon payment of duties equal to the drawbacks allowed; or to any article manufactured in bonded warehouse and exported under any provision of law: And provided further, That when manufactured tobacco which has been exported without payment of internal-revenue tax shall be reimported it shall be retained in the custody of the collector of customs until internal-revenue stamps in payment of the legal duties shall be placed thereon.

501. Asbestos, unmanufactured.

502. Ashes, wood and lye of, and beet-root ashes.

503. Asafetida.

504. Balm of Gilead.

505. Barks, cinchona or other from which quinine may be extracted.

506. Beeswax.

507. Binding twine: All binding twine manufactured from New Zealand hemp, manila, istle or Tampico fiber, sisal grass, or sunn, or a mixture of any two or more of them, of single ply and measuring not exceeding six hundred feet to the pound: Provided, That articles mentioned in this paragraph, if imported from a country which lays an import duty on like articles imported from the United States, shall be subject to a duty of one-half of one cent per pound.

508. Bells, broken, and bell metal broken and fit only to be remanufactured.

509. Birds, stuffed, not suitable for millinery ornaments. 510. Birds and land and water fowls.

511. Bismuth.

512. Bladders, and all integuments, tendons and intestines of animals and fish sounds, crude, dried or salted for preservation only, and unmanufactured, not specially provided for in this section. 513. Blood, dried, not specially provided for in this section.

514. Bolting cloths composed of silk, imported expressly for milling purposes, and so permanently marked as not to be available for any other use.

515. Bones, crude, or not burned, calcined, ground, steamed, or otherwise manufactured, and bone dust or animal carbon, and bone ash, fit only for fertilizing purposes.

516. Books, engravings, photographs, etchings, bound or unbound, maps and charts imported by authority or for the use of the United States or for the use of the Library of Congress.

517. Books, maps, music, engravings, photographs, etchings, bound or unbound, and charts, which shall have been printed more than twenty years at the date of importation, and all hydrographic charts, and publications issued for their subscribers or exchanges by scientific and literary associations or academies, or publications of individuals for gratuitous private circulation, and public documents issued by foreign governments.

518. Books and pamphlets printed chiefly in languages other than English; also books and music, in raised print, used exclusively by the blind.

519. Books, maps, music, photographs, etchings, lithographic prints, and charts, specially imported, not more than two copies in any one invoice, in good faith, for the use and by order of any society or institution incorporated or established solely for religious, philosophical, educational, scientific, or literary purposes, or for the encouragement of the fine arts, or for the use and by order of any college, academy, school, or seminary of learning in the United States, or any state or public library, and not for sale, subject to such regulations as the Secretary of the Treasury shall prescribe.

520. Books, libraries, usual and reasonable furniture, and similar household effects of persons or families from foreign countries, all the foregoing if actually used abroad by them not less than one year, and not intended for any other person or persons, nor for sale.

521. Brass, old brass, clippings from brass or Dutch metal, all the foregoing, fit only for remanufacture.

522. Brazilian pebble, unwrought or unmanfactured.

523. Bristles, crude, not sorted, bunched, or prepared.

524. Bullion, gold or silver.

525. Burgundy pitch.

526. Cadmium.

527. Camphor, crude, natural.

528. Castor or castoreum.

529. Catgut, whip gut, or worm gut, unmanufactured.

530. Cerium, cerite, or cerium ore.

531. Chalk, crude, not ground, bolted, precipitated, or otherwise manufactured.

532. Chromate of iron or chromic ore.

533. Civet, crude.

534. Clay: Common blue clay and Gross-Almerode glass-pot clay, in cases or casks suitable for the manufacture of crucibles and glass melting pots or tank blocks.

535. Coal, anthracite, and coal stores of American vessels, but none shall be unloaded.

536. Coal tar, crude, pitch of coal tar, and products of coal tar known as dead or creosote oil, benzol, toluol, naphthalin, xylol, phenol, cresol, toluidine, xylidin, cumidin, binitrotoluol, binitrobenzol, benzidin, tolidin, dianisidin, naphtol, naphtylamin, diphenylamin, benzaldehyde, benzyl chloride, resorcin, nitro-benzol, and nitrotoluol, naphtylaminsulfoacids and their sodium or potassium salts, naphtolsulfoacids and their sodium or potassium salts, amidonaphtolsulfoacids and their sodium or potassium salts, amidosalicylic acid, binitrochlorbenzol, diamidostilbendisulfoacid, metanilic acid, paranitranilin, dimethylanilin; all the foregoing not medicinal and not colors or dyes.

537. Cobalt and cobalt ore.

538. Cocculus indicus.

539. Cochineal.

540. Cocoa, or cacao, crude, and fiber, leaves, and shells of. 541. Coffee.

542. Coins of gold, silver, copper, or other metal.

543. Coir, and coir yarn.

544. Copper ore; regulus of, and black or coarse copper, and copper cement; old copper, fit only for remanufacture, clippings from new copper, and copper in plates, bars, ingots, or pigs, not manufactured or specially provided for in this section.

545. Composition metal of which copper is the component material of chief value, not specially provided for in this section.

546. Coral, marine, uncut, and unmanufactured.

547. Cork wood, or cork bark, unmanufactured.

548. Cotton, and cotton waste or flocks.

549. Cryolite, or kryolith.

550. Cudbear.

551. Curling stones, or quoits, and curling-stone handles. 552. Curry, and curry powder.

553. Cuttlefish bone."

554. Dandelion roots, raw, dried, or undried, but unground.

555. Diamonds and other precious stones, rough or uncut, and not advanced in condition or value from their natural state by cleaving, splitting, cutting, or other process, including glaziers' and engravers' diamonds not set.

556. Miners' diamonds, whether in their natural form or broken, and bort; any of the foregoing not set, and diamond dust. 557. Divi-divi.

558. Dragon's blood.

559. Drugs, such as barks, beans, berries, balsams, buds, bulbs, bulbous roots, excrescences, fruits, flowers, dried fibers, dried insects, grains, gums, gum resin, herbs, leaves, lichens, mosses, nuts, nutgalls, roots, stems, spices, vegetables, seeds (aromatic, not garden seeds), seeds of morbid growth, weeds, and woods used expressly for dyeing or tanning; any of the foregoing which are natural and uncompounded drugs and not edible and not specially provided for in this section, and are in a crude state, not advanced in value or condition by any process or treatment whatever beyond that essential to the proper packing of the drugs and the prevention of decay or deterioration pending manufacture: Provided, That no article containing alcohol, or in the preparation of which alcohol is used, shall be admitted free of duty under this paragraph.

560. Eggs of birds, fish, and insects (except fish roe preserved for food purposes): Provided, however, That the importation of eggs of game birds or eggs of birds not used for food, except specimens for scientific collections, is prohibited: Provided further, That the importation of eggs of game birds for purposes of propagation is hereby authorized, under rules and regulations to be prescribed by the Secretary of the Treasury.

561. Emery ore and corundum.

562. Ergot.

563. Fans, common palm-leaf, plain and not ornamented or decorated in any manner, and palm leaf in its natural state, not colored, dyed, or otherwise advanced or manufactured.

564. Felt, adhesive, for sheathing vessels.

565. Fence posts of wood.

566. Fibrin, in all forms.

567. Fish, fresh, frozen, or packed in ice, caught in the Great Lakes or other fresh waters by citizens of the United States, and all other fish, the products of American fisheries.

568. Fish skins.

569. Flint, flints, and flint stones, unground. 570. Fossils.

571. Fruits or berries, green, ripe, or dried, and fruits in brine, not specially provided for in this section.

572. Fruit plants, tropical and semitropical, for the purpose of propagation or cultivation.

573. Furs, undressed.

574. Fur skin of all kinds not dressed in any manner and not specially provided for in this section.

575. Gambier.

576. Glass enamel, white, for watch and clock dials.

577. Glass plates or disks, rough-cut or unwrought, for use in the manufacture of optical instruments, spectacles, and eyeglasses, and suitable only for such use: Provided, however, That such disks exceeding eight inches in diameter may be polished sufficiently to enable the character of the glass to be determined.

578. Grasses and fibers: Istle or Tampico fiber, jute, jute butts, manila, sisal grass, sunn, and all other textile grasses or fibrous vegetable substances, not dressed or manufactured in any manner, and not specially provided for in this section.

579. Gold beaters' molds and gold beaters' skins.

580. Grease, fats, vegetable tallow, and oils (excepting fish oils), such as are commonly used in soap making or in wire drawing, or for stuffing or dressing leather, and which are fit only for such uses, and not specially provided for in this section.

581. Guano, manures, and all substances used only for manure, including basic slag, ground or unground, and calcium cyanamid or lime nitrogen.

582. Gutta-percha, crude.

583. Hair of horse, cattle, and other animals, cleaned or uncleaned, drawn or undrawn, but unmanufactured, not specially provided for in this section; and human hair, raw, uncleaned, and not drawn.

584. Hide cuttings, raw, with or without hair, and all other glue stock.

585. Hide rope.