“ From all that has been said it is apparent that the status of the Gleneden, judged in the light of what was done and shown in the District Court, is at best doubtful and uncertain, both as matter of fact and in point of law. The jurisdiction of that court is correspondingly in doubt, for it turns on the status of the vessel. The suit is still in the interlocutory stage. The court may take up again the question of its jurisdiction. If it does, the inquiry may proceed on other lines and the facts may be brought out more fully than before. ”

“ Here the most that can be said against the District Court's jurisdiction is that it is in doubt; and in other respects the situation is such that we deem it a proper exercise of discretion to refuse the writ. Nothing need be added to show that the request for a writ of mandamus is on no better footing. ”

“ The reasons underlying that practice are as applicable and cogent now as in the beginning, and are sufficiently indicated by observing that it makes for better international relations, conforms to diplomatic usage in other matters, accords to the Executive Department the respect rightly due to it, and tends to promote harmony of action and uniformity of decision. ”