"The decided manner in which the doctrine of vicarious atonement is rejected, the prominence given to the belief that Jesus was a dependent being, dependent like ourselves on a common Father and God, and that he was sent to preach the truth and illustrate its requirements, and by his exclusive influence to reconcile man to his Maker, were subjects so new, so startling, that for a time the work appears not to have been very well received. But the important object was attained. The public attention, and especially that of Universalists, was drawn to the consideration of these fundamental and momentous doctrines. The author's views were very generally adopted by the order, and the book obtained unbounded popularity. It deserves this distinction, for it doubtless wrought the great revolution that transformed Universalism from the Unitarian hypothesis, with all its concomitants, into the simple and intelligible system formed in the doctrine of the indivisible oneness of God. It is, perhaps, impossible to estimate the influence which this work has had upon the so-called Unitarian controversy in New England. But this much is quite certain, the 'Treatise' was one of the earliest publications that openly and distinctly rejected the doctrine of the Trinity, and manfully met the prevailing prejudices respecting that subject. But aside from these matters, there is not another book in the country, on the same subject, that has been read by half the number of persons, or wrought conviction of the truth of the doctrine of the Divine unity in one half so many minds, as this '_Treatise on Atonement_.'" These notices, as we have just intimated, are introduced here to give the reader, who may not be otherwise acquainted with the "Treatise," a correct and clear idea of the work. Though among the earliest of Mr. Ballou's publications, this book is far from being deficient in any point, either as to sound logical reasoning, or in force and earnestness of style. Simple, yet profound, it is within the capacity of the humblest to comprehend and fully understand, while it cannot fail to challenge the admiration of the scholar and philosopher. It is written in the plain, straightforward manner which so distinguished his after productions, and which never failed to carry conviction with it. "The 'Treatise' has been pronounced by one of the strongest minds of the age," says the publisher of the sixth edition, "to be one of the soundest arguments in the English language." Were the author's reputation to rest solely upon this work, we should feel satisfied at the manner in which his memory must be handed down to posterity.