Sound as this was, it is a little remarkable that Mr. Buchanan should not have considered that the duty of voting the necessary appropriation precluded the House of Representatives from dictating what subjects the Ministers were to discuss or not to discuss. Those who favored the proposed amendments founded themselves on the legal maxim that he who has the power to give may annex to the gift whatever condition he chooses. This was well answered by Mr. Webster, that in making appropriations for such purposes the House did not make gifts, but performed a duty. The amendments were rejected on the 21st of April, and on the following day the Panama Appropriation Bill was passed, Mr. Buchanan voting with the majority.[21] Some of the topics incidentally touched upon in the discursive debate on this Panama Mission are of little interest now. But one may be referred to, because it related to the dangerous topic of slavery. An apprehension was felt by those who were opposed to this measure, and by Mr. Buchanan, among others, that the Spanish-American Republics, more particularly Mexico and Colombia, might concert measures at this proposed Congress to seize the West India Islands, and raise there the standard of emancipation and social revolution. Those who entertained this apprehension, therefore, did not wish to see the moral and political influence of this proposed Congress increased by the participation of the United States in its proceedings. It may have been an unfounded fear; but in truth, excepting in so far as the objects of this assembly were understood and explained by the American Administration itself, very little was known of the purposes entertained by its original projectors. It was certainly not unnatural, in the then condition of our own country, and of the West Indies, in regard to the matter of slavery, that public men in the United States should have been cautious in regard to this exciting topic. At all events, it was introduced incidentally, in the discussion on the proposed Mission, and Mr. Buchanan thus expressed himself upon it: