4 
Libri, quos citavi, praeter paucos ante annum MDCCCXLVII 
editi sunt, Quod noli mirari,  Pritzelius enim quum in librorum 
indice componendo certum quendam temporis terminum sibi non 
constituisset, ego quoque non habebam, ad quem finem opus meum 
dirigerem. — Neque" praetermittendum est, me additamenta quae- 
dam thesauro illi adiicere, sed non eum supplemento explere. vo- 
luisse. is : 
* Librorum autem, quorum inscriptiones collegi, maximam par- 
tem dissertationes inaugurales efficiunt, quarum bona copia Weige- 
lii bibliopolae Lipsiensis libraria excellit. ^ Has igitur omnes ipse 
inspexi, Porro scriptorum, quae in Ameriea in lucem prodierunt, 
, notitiam Roorbachii bibliothecae Americanae*) debui. Si quos 
alios libros laudavi, commemorare non neglexi, ex quo fonte hau- 
sissam. Quorum titulos a testibus, quibus fidem habere coactus 
sum, semper accurate descriptos esse, pro certo affirmare non 
ausim.  Haque eos, ut ab inscriptionibus, quas ipse inspexi, ali- 
qua ratione differrent, asteriscis notare malui. 
--- -Seribebam Lipsiae mense Dec. A. D. MDCCCLIL 
. *) Biblistbeca Americana, Catalogue of American publications, includ-. 
. img reprints and original works, from 1820 to 1848, inclusive. 
, Compiled. and arranged by O. A. Roorbach. New-York: G. P. Put- 
nam. 1849. Lex-8. — Et: Supplement to the Bibliotheca Ame- 
rTicana: comprising a list of books, [re-prints and original. works,] 
Which heave been published in the United States within the past year. 
Also, omissions and corrections of errors, as far as ascertained, 
. Which occurred in the former work. Together with a list of perio- 
. Üicals. Compiled and arranged by O. A. Roorbach. New-York: G.. 
