Joseph P. Bradley, Railroad Company v. National Bank…
“ In that case prior equities of the mortgagor might have prevailed against the title of the bank; because a mortgage is not a commercial security, and its transfer for any consideration whatever does not cut off prior equities. But the bona fide transfer of commercial paper before maturity does cut off such equities; and every collateral is held by the creditor by such title and in such manner as appertain to its nature and qualities. Security for the payment of a debt actually owing is a good consideration, and sufficient to support a transfer of property. ”
