The greatest of English poets is Shakespeare. The greatest prose writer in English literature is probably Bacon. Each of these writers, alone, is a marvel of intellectual grandeur. It is hard to understand how one man, in a few years, could have written all the masterpieces of Shakespeare,--thirty-six dramas, each a work of genius such as the world will never let die. It is a marvel that from one mind could proceed the tender charm of such poems as "Romeo and Juliet," "As You Like It," or "The Winter's Tale;" the wild romance of "The Tempest," or of "A Midsummer Night's Dream;" the awful tragedies of "Lear," "Macbeth," and "Othello;" the profound philosophy of "Hamlet;" the perfect fun of "Twelfth Night," and "The Merry Wives of Windsor;" and the reproductions of Roman and English history. It is another marvel that a man like Bacon, immersed nearly all his life in business, a successful lawyer, an ambitious statesman, a courtier cultivating the society of the sovereign and the favorites of the sovereign, should also be the founder of a new system of philosophy, which has been the source of many inventions and new sciences down to the present day; should have critically surveyed the whole domain of knowledge, and become a master of English literary style. Each of these phenomena is a marvel; but put them together, and assume that one man did it all, and you have, not a marvel, but a miracle. Yet, this is the result which the monistic tendency of modern thought has reached. Several critics of our time have attempted to show that Bacon, besides writing all the works usually attributed to him, was also the author of all of Shakespeare's plays and poems. This theory was first publicly maintained by Miss Delia Bacon in 1857. It had been, before, in 1856, asserted by an Englishman, William Henry Smith, but only in a small volume printed for private circulation. This book made a distinguished convert in the person of Lord Palmerston, who openly declared his conviction that Bacon was the author of Shakespeare's plays. Two papers by Appleton Morgan, written in the same sense, appeared last year in "Appletons' Journal." But far the most elaborate and masterly work in support of this attempt to dethrone Shakespeare, and to give his seat on the summit of Parnassus to Lord Bacon, is the book by Judge Holmes, published in 1866. He has shown much ability, and brought forward every argument which has any plausibility connected with it. Judge Holmes was, of course, obliged to admit the extreme antecedent improbability of his position. Certainly it is very difficult to believe that the author of such immortal works should have been willing, for any reason, permanently to conceal his authorship; or, if he could hide that fact, should have been willing to give the authorship to another; or, if willing, should have been able so effectually to conceal the substitution as to blind the eyes of all mankind down to the days of Miss Delia Bacon and Judge Holmes.