plates entirely engraved by himself, for he attached such importance to the accuracy of his maps that he would not allow them to be executed by anyone else. His historical works were popular in Ukraine especially among members of the Ruthenian Trinity and the Brotherhood of Saints Cyril and Methodius (particularly historian Mykola Kostomarov). His works on Polish history are based on minute and critical study of the documents; they were collected under the title Polska, dzieje i rzeczy jej rozpatrzywane (Poland, Her History and Affairs Surveyed), in 20 vols. (1853–1876). He intended to write a complete history of Poland on an extensive scale, but never accomplished the task. His method is shown in the "little history" of Poland, first published at Warsaw in Polish in 1823, under the title Dzieje Polski, and afterwards largely rewritten in the Histoire de Pologne (2 vols., 1844). Other works on Polish history which may be especially mentioned are La Pologne au moyen âge (Poland in the Middle Ages, 3 vols., 1846–1851), an edition of the Chronicle of Matthew Cholewaski (1811) and Ancient Memorials of Polish Legislation (Księgi ustaw polskich i mazowieckich). He also wrote on the trade of Carthage, on the geographer Pytheas of Marseille, and two important works on numismatics (La Numismatique du moyen âge, 2 vols., 1835; Etudes numismatiques, 1840). While employed in the Warsaw University library, he studied bibliography, and the fruits of his labors may be seen in his Bibliograficznych Ksiąg dwoje (Two Bibliographic Books, 2 vols., 1823–1826). Lelewel's characteristics as a historian are great research and power to draw inferences from his facts. His style is too often careless, and his narrative is not picturesque, but his expressions are frequently terse and incisive. He wrote an autobiography (Adventures while Prosecuting Researches and Inquiries on Polish Matters), printed in his Polska (Poland). Edda czyli Księga religii dawnych Skandynawii mięszkańców (1807) Rzut oka na dawnosc litewskich narodow i związki ich z Herulami (1808) Uwagi nad Mateuszem herbu Cholewa polskim XII wieku dzieiopisem, a w sczególności nad pierwszą dzieiów iego xięgą (1811) Historyka tudzież o łatwem i pozytecznem nauczaniu historyi (1815) Joachima Lelewela badania starożytności we względzie geografji : część naukowa (1818) Dodatek do Teodora Wagi Historyi książąt i królów polskich : panowanie Stanislawa Augusta (1819) Joachima Lelewela bibljograficznych ksiąg dwoje Tom 1 (1823) Tom 2 (1826) Edda : to jest Księga religii dawnych Skandynawii mieszkańców (1828) Dzieje bibliotek do Dziennika