Nothing in sections 361a to 361i of this title shall be construed to impair or modify the legal relation existing between any of the colleges or universities under whose direction State agricultural experiment stations have been established and the government of the States in which they are respectively located. States having agricultural experiment stations separate from such colleges or universities and established by law, shall be authorized to apply such benefits to research at stations so established by such States: Provided, That in any State in which more than one such college, university, or agricultural experiment station has been established the appropriations made pursuant to sections 361a to 361i of this title for such State shall be divided between such institutions as the legislature of such State shall direct.