Whoever cuts, chips, chops, or boxes any tree upon any lands belonging to the United States, or upon any lands covered by or embraced in any unperfected settlement, application, filing, entry, selection, or location, made under any law of the United States, for the purpose of obtaining from such tree any pitch, turpentine, or other substance; or

Whoever buys, trades for, or in any manner acquires any pitch, turpentine, or other substance, or any article or commodity made from any such pitch, turpentine, or other substance, with knowledge that the same has been so unlawfully obtained—

Shall be fined under this title or imprisoned not more than one year, or both.