We had, in reliance upon receiving fuller materials for discussion by the Eastern mail _arriving_ in the middle of August, promised by anticipation two heads for our review, which, under the imperfect explanations received, we are compelled to defer. Meantime, upon each of these two heads we shall point the attention of our readers to one or two important facts, First, as regards the sepoy revolt considered in relation to the future pecuniary burdens on the Bengal exchequer, it ought to be remembered, that, if (according to a very loose report) the Company shall finally be found to have lost twenty millions of rupees, or two millions sterling, by the looting of many local treasuries, it will, on the other hand, have saved, upon forfeited pay, and (which is much more important) upon, forfeited pensions, in coming years, a sum nearly corresponding. Secondly, this _loot_ or plunder must have served the public interest in a variety of ways. It must have cramped the otherwise free motions of the rebels; must have given multiplied temptations to desertion; must have instilled jealousies of each other, and want of cordial co-operation in regard to the current plans, and oftentimes murderous animosities in regard to past transactions--divisions of spoil, or personal competitions. Thus far, if nothing had been concerned more precious than money, it is by no means clear that the _public_ service (as distinct from the interest of private individuals, whose property has been destroyed) will be found to have very seriously suffered. The other head, which concerns the probable relation of this astonishing revolt to the wisdom of our late Indian administration, finds us, for the present, enveloped in a mystery the most impenetrable that history, in any of its darkest chapters, has offered. We have a war on foot with Southern China, or rather with Canton; and what may be the Chinese object in that war, is hitherto an impenetrable mystery. But darker and more unfathomable is the mystery which invests the sepoy insurrection. Besides the notorious fact that no grievances, the very slightest, have been alleged, it must also be remembered that we first and solely made a provision for the invalided and for the superannuated soldier--a thing unheard of throughout Asia. And this golden reversion, the poor infatuated savages have _wilfully_ renounced! The sole _sure_ result, from this most suicidal of revolts, is--that unpitied myriads of sepoys will be bayonetted, thousands will be hanged, and nearly all will lose their pensions. II. PASSING NOTICES OF INDIAN AFFAIRS. (_October, 1857._)