There's a Methodist appearance on page 322:
De la Marque sauntered into Julian's and MacGregor's room as if he were making the rounds of the fashionable boxes at La Scala. "Good evening, mon vieux-my dear Doctor. How delightful of you to invite me for a comfortable coze, as you English say." He lifted his black brows and looked about. "I don't see any cards-not even a bottle of wine. If anyone comes in, we shall be taken for Methodists."