as well as a legal jurisdiction. Agreements to convey lands claimed under the grants of different States, may afford another example of the necessity of an equitable jurisdiction in the federal courts. This reasoning may not be so palpable in those States where the formal and technical distinction between LAW and EQUITY is not maintained, as in this State, where it is exemplified by every day's practice.
The judiciary authority of the Union is to extend:
Second. To treaties made, or which shall be made, under the authority of the United States, and to all cases affecting ambassadors, other public ministers, and consuls. These belong to the fourth class of the enumerated cases, as they have an evident connection with the preservation of the national peace.
Third. To cases of admiralty and maritime jurisdiction. These form, altogether, the fifth of the enumerated classes of causes proper for the cognizance of the national courts.