Maryland, through her State Society, is about trying the important experiment, whether, by means of colonies on the coast of Africa, slave-holding states may become free states. The Board of Managers cannot doubt of success, however; and in exercising the high and responsible duties devolving upon them, it is with the firm belief that the time is not very remote, when, with the full and free consent of those interested in this species of property, the state of Maryland will be added to the list of the non-slave-holding states of the Union.--3 A. R. page 6. It has been charged, again and again, against the general scheme, that its tendencies were to perpetuate slavery; and, at this moment, both in this country and in Europe, there are those who stigmatize the labors of men like Finley, Caldwell, Harper, Ayres, Ashmun, Key, Gurley, Anderson and Randall, as leading to this end. Unfounded as is the charge, it has many believers. The colonization law of Maryland is based upon a far different principle; for the immigration of slaves is expressly prohibited, and the transportation of those who are emancipated is amply provided for. In accordance, therefore, with the general sentiment of the public, and anxious that colonization in the state should be relieved from the imputation put upon the cause, resolutions were unanimously adopted, avowing that the extirpation of slavery in Maryland was the chief object of the society's existence.--3 A. R. page 33. Throughout the report the same current of events was referred to; and they were found to be everywhere the same as to the effects of the colonial scheme on the manumission of slaves. To show the cause of the objections to the scheme by free persons of color, Mr. B. read the following extract:--