This book is a public imposition. It is a duodecimo volume, of the usual novel size, bound in the customary muslin cover with a gilt stamp on the back, and containing 225 pages of letter press. Its price, in the bookstores, is, we believe, a dollar. Although we are in the habit of reading with great deliberation, not unfrequently perusing individual passages more than two or three times, we were occupied _little better than one hour_ in getting through with the whole of the “_Ups and Downs_.” A full page of the book—that is, a page in which there are no breaks in the matter occasioned by paragraphs, or otherwise, embraces precisely 150 words—an average page about 130. A full page of this our Magazine, will be found to contain 1544 words—an average page about 1600, owing to the occasional notes in a smaller type than that generally used. It follows that nearly thirteen pages of such a volume as the “_Ups and Downs_” are required to make one of our own, and that in about fourteen pages such as we are writing, (if we consider the sixteen blank half-pages at the beginning of each chapter in the “_Ups and Downs_,” with the four pages of index) the whole of the one dollar duodecimo we are now called upon to review, might be laid conveniently before the public—in other words, that we could print nearly six of them in one of our ordinary numbers, (that for March for instance) the price of which is little more than forty cents. We give the amount of six such volumes then for forty cents—of one of them for very little more than a _fi'penny bit_. And as its price is a dollar, it is clear either that the matter of which the said “_Ups and Downs_” is composed, is sixteen times as good in quality as our own matter, and that of such Magazines in general, or that the author of the “_Ups and Downs_” supposes it so to be, or that the author of the “_Ups and Downs_” is unreasonable in his exactions upon the public, and is presuming very largely upon their excessive patience, gullibility, and good nature. We will take the liberty of analyzing the narrative, with a view of letting our readers see for themselves whether the author (or publisher) is quite right in estimating it at sixteen times the value of the ordinary run of compositions.