“All we have to do is to state the grounds of the quarrel with M. de Saint-Aignan.”

“Well, but that is done, it seems.”

“No, my dear M. du Vallon, the usage of the present day requires that the cause of the quarrel should be explained.”

“Very good. Tell me what it is, then.”

“The fact is — ”

“Deuce take it! how troublesome all this is! In former days we had no occasion to say anything about the matter. People fought for the sake of fighting; and I, for one, know no better reason than that.”

“You are quite right, M. du Vallon.”

“However, tell me what the cause is.”