He had been accustomed to slavery from his birth. So he purchased a cotton plantation near Huntsville and directed the management of it. But his kind heart was ill at ease in view of the condition of the slaves. He could not regard them as brute animals, and felt that there must be a terrible wrong in treating them as if they were. He gladly entered into the project of the Colonization Society, hoping it would lead ultimately to the deliverance of the bondsmen. He became so interested in it that he turned from his legal practice, which had become very lucrative, that he might discharge the duties of General Superintendent of the Colonization Society in the States of Alabama, Mississippi, Louisiana, Tennessee, and Arkansas. He travelled extensively throughout those States, was everywhere treated with respect, and had abundant opportunities for forming an opinion of the real effect of the Colonization scheme upon the institution of slavery. He saw that it was tending to perpetuate rather than to put an end to the great iniquity. Towards the close of 1833 Mr. Birney removed back to his native place, that he might be near and minister to the comfort of his aged father. He returned carrying with him his new-formed opinions of Colonization. He found a few who had come to feel, with him, that something else and more should be done for the relief of the oppressed. In December of that year he joined them and formed the “Kentucky Gradual Emancipation Society.” But the principles of it did not long satisfy him. Mr. Garrison’s “Thoughts on Colonization,” published more than a year before in Boston, had reached that neighborhood, and probably had come under the consideration of Mr. Birney. It contained a faithful searching review of the purposes, the spirit and tendency of Colonization. Soon after, the famous discussion arose in Lane Seminary, of which I have given some account on a previous page, and which resulted in an eruption that threw eighty “live coals” in as many directions over the country,--fervent young men, who went diligently about, kindling up the minds of the people on the question of _immediate_ emancipation. That remarkable young man, Theodore D. Weld, leader of the antislavery party in Lane Seminary, visited Mr. Birney, and found him ready for conversion, if not already a convert to the highest antislavery truth. Their interviews resulted in Mr. Birney’s entire conviction that the Colonization plan tended to uphold rather than to subvert slavery; and that immediate emancipation, without removal from their homes, was the right of every slave, and the duty of every slaveholder.