As long ago as 1832, the question of abolishing the opium monopoly suggested itself to the East India Company; and the same course was proposed by Sir Charles Trevelyan in 1864.[127] If the opium revenue is to be retained while the monopoly is abolished, there is only one practicable course to be pursued. A Customs duty must be laid on the export of all opium. And this method has obtained the support of many able men who, objecting to the opium traffic as at present conducted, and at the same time seeing the difficulties in the way of its total abolition, propose this compromise. Such are Sir Bartle Frere,[128] Sir Richard Temple, the Marquis of Hartington, and others. But there are many serious drawbacks even to this solution of the difficulty, and such as have always prevailed against it when it has been proposed, as it often has, in Council. On the one hand, the revenue derived from this system would be much less. Sir Evelyn Baring, who is studiously moderate in his figures, informed us in his financial statement for 1882 how much loss would actually in this way ensue. For whereas a chest of Bengal opium costs us to manufacture it 421 Rs., we can sell it for 1,280 Rs. (average of ten years), thus making a clear profit per chest of 859 Rs.; but if we decided to introduce the excise system, the opium would not bear more than 600 Rs. a chest as export duty.[129] The average number of chests exported may be taken as likely to be 45,000. Duty on these would give £2,700,000. But our net revenue from Bengal opium is at least £5,000,000, so that our loss would be nearly two millions and a half; and besides the loss to the Imperial exchequer, the Provincial Governments would lose a part of their income. Moreover, the cost of preventive establishments would be great, and still some part of the produce would evade duty. Again, the cultivators would suffer in every way. Their actual profits would be less, and the zemindars would take the opportunity of squeezing them by rack-renting and other recognized means of oppression, as has been the case in indigo-cultivation, where great disturbances have been caused among the ryots. Add to this that vested interests would be created which would render any return to the old system very difficult, if not impossible. On the other hand--and this must be clear even to the anti-opiumists--India would not release herself from the responsibility of the traffic, whatever that may be, by this means. Direct participation in the manufacture may be more undignified for an Imperial Government than merely a share in the profits; but it cannot affect its moral responsibility. Nor would an ounce less opium enter China because of this measure. "The monopoly," says Sir Henry Pottinger, "has rather tended to check than otherwise the production, as it certainly has the exportation, of the drug."