The principles of its treatment, by the water system, are so sensibly and rationally put forward in the pamphlet entitled, “An Address, &c.,” that, as we think, the greatest sceptic must be convinced of the truth of the doctrines it propounds, we strongly recommend its perusal to our readers. Of the many cases treated by the author, ALL, we are told, recovered, whilst not a single instance of secondary fever—the invariable accompaniment of the Allopathic treatment, and only secondary in danger to the disease itself—occurred. The necessary prevalence of this secondary fever in the one case, and its absence in the other, are beautifully explained, on natural principles, at pages 9 and 10. Though the pamphlet in question is anonymous, and the author has taken some pains to explain his reason for concealing his name, yet he has unwittingly betrayed his identity in the following extract from a letter from Lieut.-Colonel Cummins, C.M., who, having tried the system as an amateur, in America, thus writes of it:— “Tell Barter that his system has lately become the universal practice in the Southern States, for cholera; and since its adoption, although it is, of course, but imperfectly carried out, the mortality is not one-fourth. “I never saw cholera of so frightful a character; that at Quebec, which you recollect was so near doing for me, was nothing to it; the violence of the spasms was such that blood oozed out through all the pores of the skin, especially with the niggers. It did not give the slightest warning; the men often fell while at work, and before four hours were dead.” The following statement, extracted from a letter written by Mr. James Morgan of Cork, and which appeared in the Limerick Chronicle, 4th April, 1849, affords a remarkable instance of the beneficial effects of fresh air and cold water, so strongly insisted upon by Dr. Barter, and corroborating the practice which, on theoretical grounds, he recommends: