THE INDIAN MUTINY-Rev. Dr. DUFF, the distinguished Missionary in India has published a pamphlet upon the causes of the mutiny in India. He thinks it absurd to attribute it to the attempt to enforce the use of greased cartridges- though he believes it quite likely that this was the occasion seized upon for an outbreak. He ascribes the mutiny to two causes, first, the existence of active elements and agents of treachery, “of an essentially political character,” at all times ready to take advantage secretly of any chance for arraving native superstition, jealousy, and dislike, in murderous violence against the British rule; and able by their secret character, and the deep grasp they take upon a weak and yet passionate race, by means of its traditions and prejudices, to communicate their influence with fearful celerity and effect throughout the Oriental empire; and second a general condition of disloyalty and disaffection at heart, toward not only the British Government, but even their own regimental officers. A mixture of the profoundest ignorance and indifference as to the feelings and character of the Sepoy, appears to characterize the British officers of the native regiments. No friendship, gratitude, or respect are cultivated generally in the breasts of these Hindoo soldiers, by the exhibition of a kindly interest and fellow-feeling, a consideration of their comfort, for their feelings, and for their prejudice in private, nor by a high military character, and bearing on duty. The merciless slaughter of all the officers, with here and there perhaps an honored exception, without one friendly intimation from an attached and grateful soldiers, shows what relations subsist between the men and their military superiors. But Dr. DUFF concludes with glowing anticipation of the moral glory of the issue, in case the tremendous warnings of all this experience are duly improved.