During the decade from 1840 to 1850 this outside pressure of which Shaler speaks was at its height. We have seen typical examples of it within the borders of Kentucky in the discussion of the cases of Delia Webster, Calvin Fairbank and John B. Mahan. The change in the trend of popular thought during this period does not show itself much in the open until 1849, when the third constitutional convention was about to assemble. It was then that all phases of the problem of slavery were discussed, in the press, in the pulpit, on the platform and in the elections. George IX Prentice in an editorial gave the best exposition of Kentucky sentiment. He said: "The sentiment of Kentucky we believe to be, that slavery is an evil which must be borne with patience, simply because there is no known plan for its rapid extinction which would not produce incalculable sacrifices and appalling risks. At the same time we think the people of Kentucky are not inclined to increase the evil, but are inclined to favor its gradual emancipation and remote termination, by prohibiting the further introduction of slaves and by some provision tending to encourage voluntary emancipation with colonization. These measures they believe, taken in connection with the known tendency in widening circles to substitute free for slave labor, will hasten the social revolution in question as fast as it can be carried with safety to the Commonwealth or with benefit to the colonized negro."[431] So universal was this feeling that even Cassius M. Clay, the only real abolitionist left in the State, came out more or less in favor of it. Under his leadership there was held at Frankfort, April 25, 1849, an emancipation convention to which all the more radical element were invited. Clay himself proved to be the most radical member of the convention but when they came to draw up a series of resolutions the only ones to pass were those which favored the absolute prohibition of the importation of any more slaves into Kentucky and the complete power to enforce and perfect, under the new constitution, whenever the people desired it, a system of gradual emancipation of the slaves.[432] Here we are confronted with the unusual fact that the radical element of the State agreed with the plan of George D. Prentice, one of the chief pro-slavery men of Kentucky, and with that of Henry Clay.