A gentleman of this town, (New Haven, Conn.) of undoubted veracity, who has lately spent several weeks at Nauvoo and among the Mormons, informs us that the general impression abroad in regard to that place and people is very erroneous. During his residence there he became quite familiar with their manners, principles, and habits, and says there is not a more industrious, moral, and well-ordered town in the country. Society is as much diversified there as it is here, the Mormons constituting about two-thirds of the population, while all religious sects are as freely tolerated as in any other part of the State. He was at the late trial and acquittal of Joseph Smith, and says that the charges against him were of the most frivolous and unsubstantial nature. He [Joseph Smith] is an agreeable man in conversation, is respected by those who know him, and is 'as much sinned against as sinning.' He only claims the privilege of exercising and enjoying his own religion,--a privilege which he and his followers cheerfully award to others. They invite immigrants to come among them, and receive those who design to enter into the Mormon community with great attention and kindness. Houses are prepared for their reception, to which they are conducted on their arrival by a committee appointed for that purpose, whose next business is to attend to their immediate wants and see them comfortably situated. Education is by no means neglected, proper schools and teachers being provided, and temperance reigns throughout. It has now about 15,000 to 18,000 inhabitants, and promises to become a place of extensive business, four or five steamboats stopping there every day. {33} The gentleman remarked to us that he wished he could speak as well of his own native town as he could of Nauvoo. This is news to us, as no doubt it will be to many; but no one who knows him can doubt the integrity of our informant. [Sidenote: The Prophet on Socialism.] _Thursday, 14.--_I attended a second lecture on Socialism, by Mr. Finch; and after he got through, I made a few remarks, alluding to Sidney Rigdon and Alexander Campbell getting up a community at Kirtland, and of the big fish there eating up all the little fish. _I said I did not believe the doctrine._ Mr. Finch replied in a few minutes, and said--"I am the voice of one crying in the wilderness. I am the spiritual Prophet--Mr. Smith the temporal." Elder John Taylor replied to the lecture at some length. _Friday, 15._--I put up a sign, "Nauvoo Mansion." [Sidenote: "Nauvoo Mansion" Made a Hotel.]