It must not, however, be forgotten that if first editions are, in some instances, of great importance, they are in many respects superfluous, and an incumbrance to the shelves of a collector; inasmuch as the labours of subsequent editors have corrected their errors, and superseded, by a great fund of additional matter, the necessity of consulting them. Thus, not to mention other instances (which present themselves while noticing the present one), all the fine things which Colomies and Remannus have said about the rarity of La Croix du Maine's Bibliotheque, published in 1584, are now unnecessary to be attended to, since the ample and excellent edition of this work by De La Monnoye and Juvigny, in six quarto volumes, 1772, has appeared. Nor will any one be tempted to hunt for Gesner's Bibliotheca of 1545-8, whatever may be its rarity, who has attended to Morhof's and Vogt's recommendation of the last and best edition of 1583. VII. _True Editions._ Some copies of a work are struck off with deviations from the usually received ones, and, though these deviations have neither sense nor beauty to recommend them, [and indeed are principally _defects_] yet copies of this description are eagerly sought after by collectors of a certain class! This particular pursuit may therefore be called another, or the seventh, symptom of the Bibliomania. The note below [65] will furnish the reader with a few anecdotes relating to it. [Footnote 65: _Caesar. Lug. Bat._ 1635, 12mo. _Printed by Elzevir._ In the Bibliotheca Revickzkiana we are informed that the _true_ Elzevir edition is known by having the plate of a Buffalo's head at the beginning of the preface, and body of the work: also by having the page numbered 153, which _ought_ to have been numbered 149. A further account is given in my Introduction to the Classics, vol. i., 228. _Horace_: Londini, 1733, 8vo., 2 vols. Published by Pine. The _true_ edition is distinguished by having at page 108, vol ii, the _incorrect_ reading 'Post Est.'--for 'Potest.' _Virgil._ Lug. Bat. 1636, 12mo. Printed by Elzevir. The _true_ edition is known by having at plate 1, before the Bucolics, the following Latin passage _printed in red ink_. "Ego vero frequentes a te litteras accipi"--Consult De Bure, No. 2684. _Idem._ Birmingh. 1763, 4to. Printed by Baskerville. A particular account of the _true_ edition will be found in the second volume of my 'Introduction to the Classics' p. 337--too long to be here inserted. _Boccaccio._ Il Decamerone, Venet. 1527, 4to.