LEOPOLD RANKE, whose "Lives of the Popes of Rome" is familiar to American readers, has lately discovered in the National Library at Paris an important long lost MS., by the Cardinal Richelieu. In the MS. memoirs of the Cardinal, deposited at the Office for Foreign Affairs, an imperfection has existed, in the total absence of a series of leaves from the most interesting part of the collection. These appear to have been found accidentally, by M. Ranke, in a bundle of papers, gathered from some of the old mansions in Saint Germains. It has been a disputed question whether Richelieu was the real author of the works under his name; whether he availed himself of the literary abilities of others, contributing no more from his own resources than here and there an observation or a fact. These disputes have had reference to the Memoirs, the Testament, and the _Histoire de la Mere et du Fils_; for there seems to be good reason for believing that the books published previous to his political elevation, such as the _De la Perfection du Chretien_, the theological tracts, and his political treatise of 1614, were written by him with no more than the ordinary aids of authorship. It is possible that the fragment, discovered by M. Ranke, may afford additional evidence on this curious subject, which was lately debated in the Academy. * * * * * Of _bad spelling_ George Sand writes, _apropos_ of some newspaper controversy in Paris, that so far from bad spelling being a proof of want of capacity, she has a letter of Jean Jacques Rousseau, in which there are ten faults of spelling in three lines. Moreover, she assures us, that she herself frequently makes a _lapsus pennae_ for which a school-boy would be chastised. * * * * * LOLA MONTES has made her _debut_ in the literary arena, by the publication in the _feuilleton_ of a daily newspaper of the first portion of what she calls her "Memoirs:" a _quasi_-impertinent epistle to the ex-king of Bavaria. Since, the publication has been suspended. It promised merely scandal, without wit. * * * * * THE COUNT DE MONTALEMBERT has been elected a member of the French Academy, in place of M. Droz. The election gives little satisfaction outside the Institute; but the Count is not without eminence as a man of letters. Some of his religious tracts are written with great eloquence and pungency. * * * * * The seventh and last volume of the _Glossarium Mediae et Infimae Latinitatis_ has just been published by the Didots at Paris. It is a perfect repertory of information as to the middle ages, and cannot be dispensed with by any one who aims to study the institutions, history, and monuments of that period. * * * * * A complete grammar of the Coptic language has been brought out at Berlin, by Professor SCHWARTZE. * * * * *