The change wrought in seventeen years by Carey and such associates as these on society in Bengal, both rich and poor, became marked by the year 1810. We find him writing of it thus:--"When I arrived I knew of no person who cared about the Gospel except Mr. Brown, Mr. Udny, Mr. Creighton, Mr. Grant, and Mr. Brown an indigo-planter, besides Brother Thomas and myself. There might be more, and probably were, though unknown to me. There are now in India thirty-two ministers of the Gospel. Indeed, the Lord is doing great things for Calcutta; and though infidelity abounds, yet religion is the theme of conversation or dispute in almost every house. A few weeks ago (October 1810), I called upon one of the Judges to take breakfast with him, and going rather abruptly upstairs, as I had been accustomed to do, I found the family just going to engage in morning worship. I was of course asked to engage in prayer, which I did. I afterwards told him that I had scarcely witnessed anything since I had been in Calcutta which gave me more pleasure than what I had seen that morning. The change in this family was an effect of Mr. Thomason's ministry...About ten days ago I had a conversation with one of the Judges of the Supreme Court, Sir John Boyd, upon religious subjects. Indeed there is now scarcely a place where you can pay a visit without having an opportunity of saying something about true religion." Carey's friendly intercourse, by person and letter, was not confined to those who were aggressively Christian or to Christian and ecclesiastical questions. As we shall soon see, his literary and scientific pursuits led him to constant and familiar converse with scholars like Colebrooke and Leyden, with savants like Roxburgh, the astronomer Bentley, and Dr. Hare, with publicists like Sir James Mackintosh and Robert Hall, with such travellers and administrators as Manning, the friend of Charles Lamb, and Raffles.