Melville Fuller,
Blythe v. Hinckley (173 U.S. 501…
“ We are not to be understood as intimating in the least degree that the provisions of the California Code amounted to an invasion of the treaty-making power, or were in conflict with the constitution or laws of the United States, or any treaty with the United States, but it is enough for the present purpose that the state courts had concurrent jurisdiction with the circuit courts of the United States to pass on the federal questions thus intimated ”
