"Messrs. Editors of the _Baltimore Mirror_:--If you have room in your columns, permit me, through them, to say a word or two about Father Müller's book, 'The Blessed Eucharist.' But how shall I begin? To say it is great, good, or grand, is not enough. The nearest I can come to expressing what I feel about it, is to say, next to receiving the Blessed Eucharist, is the perusal of this inestimable book. I wish to say to every reader of the _Mirror_, buy the book. No matter how great a sinner you are, the hope of speedy relief is pointed out to you here; no matter how weak and discouraged you are, the way to strengthen you is shown here; no matter how dear the privilege is to you of receiving the Blessed Sacrament, it will become doubly dear after reading this book. To the rich I would say, buy two copies and give one to your poor brother; his prayers and blessings will well repay you for the trifling expenditure. To the ladies I would say, spare yourself a bit of ribbon and buy the book. To the gentlemen, a few less cigars or drinks, and buy the book. Every single page of it is worth the price of the volume. Could dear Father Müller have heard the prayers and seen the tears of a poor old lady who is crippled, and cannot go to church, when it was being read to her this morning, he would be rewarded as I know he wishes to be. To one and all I say, buy the book. "CECELIA. "_Harrisburg, Pa., 1868._" PRAYER THE KEY OF SALVATION. Price, $1.50. * * * * * [_Letter from Archbishop Spalding._] "The Book on Prayer, Key of Salvation, is a collection of beautiful jewels. It is a truly admirable book. In point of intrinsic merit, it is superior to its predecessor--the golden book on the Holy Eucharist--making due allowance for the difference of subject. It is replete with interest and solid instruction, and is specially well adapted for spiritual reading in religious communities and in families. We take much pleasure in recommending to our diocesans this excellent work of Rev. M. Müller, C.S.S.R., which appears in a second revised edition. "M. J. SPALDING, _Archbishop of Baltimore._ "_Baltimore_, Ash Wednesday, 1869." OUR LADY OF PERPETUAL HELP, IN THE WORK OF OUR REDEMPTION AND SANCTIFICATION. With an Historical Account of the Origin and Effects of the Miraculous Picture. Price, 40 cents. * * * * * [_Letter from James A. McMaster, Editor and Proprietor of "New York Freeman's Journal."_] "MY DEAR FATHER MÜLLER,--I have read the manuscript you were so kind as to leave with me, on 'Our Lady of Perpetual Help.'