Stephen Johnson Field,
Shepley v. Cowan — Opinion of the Court
“ A sale is as much prohibited by a law of Congress, when to allow it would defeat the object of that law, as though the inhibition were in direct terms declared. The general rule of the land department is, and from the commencement of the government has been, to hold as excluded from sale or pre-emption lands which might, in the execution of the laws of Congress, fall within grants to others ”
