We have received from Messrs. E. C. & J. Biddle the last number of the Pennsylvania Journal of Prison Discipline, which is published quarterly, under the direction of the Philadelphia Society for alleviating the Miseries of Public Prisons. A glance through its pages shows what is well understood--that it is a highly valuable periodical, communicating much and various important information upon the subject of which it treats. It is the only publication of the kind in the country, is certainly a very much needed one, and ought, therefore, to be well sustained by the public. _From the Episcopal Recorder._ This periodical gives a large amount of information on Prison Discipline, and cannot fail to interest such as grieve over the sufferings occasioned by crime, and regard the imprisoned criminal as still belonging to our common humanity, and needing the commiseration of the wise and good. _From the Public Ledger._ We have received the October number of the Pennsylvania Journal of Prison Discipline and Philanthropy, published under the direction of the Philadelphia Society for alleviating the Miseries of Public Prisons. It is stored with interesting matter. _From the Presbyterian._ We have been reading with great interest the Pennsylvania Journal of Prison Discipline and Philanthropy. AN INQUIRY INTO THE ALLEGED TENDENCY OF THE SEPARATION OF CONVICTS, ONE FROM THE OTHER, TO PRODUCE DISEASE AND DERANGEMENT. BY A CITIZEN OF PENNSYLVANIA. _Philadelphia_: E. C. & J. Biddle. 1849. It is, as might possibly be anticipated from the residence of the author, an elaborate and ardent defence of the separate system of confinement. The charge of its peculiar tendency to induce disease and insanity, is altogether denied, and the testimony of the successive physicians to the Eastern State Penitentiary, during a term of nearly twenty years, goes very satisfactorily to warrant the denial. The author is not, however, inclined to rest at this, but carries the war into the enemies’ camp. The chapter entitled Medical Practice, in a Congregate Prison, is calculated to attract attention, from the positions laid down in it, and their startling illustrations, deduced from the well known case of Abner Rogers. It is not the time or the place for us to enter on this warmly controverted subject, and we have noticed the work only on account of its bearing on the subject of insanity, and as forming a part of its literature.--_Am. Journal of Insanity, published by the Superintendent of the New York Lunatic Asylum, July, 1850._ * * * * * So far as the leading controversy, in regard to the rival systems of prison discipline, is concerned, it seems to us to cover the entire ground with singular ability.--_Princeton Review._ * * * * *