3 (Frankfort, 1844) by two
supplementary volumes. The remaining period of the _Regesta_, as edited
by Bohmer, is 1198-1254 (Stuttgart, 1849). These collections contain
introductions and explanatory passages by the author. Very valuable also
is the _Fontes rerum Germanicarum_ (Stuttgart, 1843-1868), a collection
of original authorities for German history during the 13th and 14th
centuries. The fourth and last volume of this work was edited by A.
Huber after the author's death. Other collections edited by Bohmer are:
_Die Reichsgesetze 900-1400_ (Frankfort, 1832); _Wittelsbachische
Regesten von der Erwerbung des Herzogtums Bayern bis zu 1340_
(Stuttgart, 1854); and _Codex diplomaticus Moeno-Francofurtanus.
Urkundenbuch der Reichsstadt Frankfurt_ (Frankfort, 1836; new edition by
F. Law, 1901). Other volumes and editions of the _Regesta imperii_,
edited by J. Ficker, E. Muhlbacher, E. Winkelmann and others, are
largely based on Bohmer's work. Bohmer left a great amount of
unpublished material, and after his death two other works were published
from his papers: _Acta imperii selecta_, edited by J. Ficker (Innsbruck,
1870); and _Regesta archiepiscoporum Maguntinensium_, edited by C. Will
(Innsbruck, 1877-1886).

See J. Janssen, _J.F. Bohmers Leben, Briefe und kleinere Schriften_
(Freiburg, 1868).

BOHN, HENRY GEORGE (1796-1884), British publisher, son of a German
bookbinder settled in England, was born in London on the 4th of January
1796. In 1831 he started as a dealer in rare books and "remainders." In
1841 he issued his "Guinea" Catalogue of books, a monumental work
containing 23,208 items. Bohn was noted for his book auction sales: one
held in 1848 lasted four days, the catalogue comprising twenty folio
pages. Printed on this catalogue was the information: "Dinner at 2
o'clock, dessert at 4, tea at 5, and supper at 10." The name of Bohn is
principally remembered by the important _Libraries_ which he
inaugurated: these were begun in 1846 and comprised editions of standard
works and translations, dealing with history, science, classics,
theology and archaeology, consisting in all of 766 volumes. One of
Bohn's most useful and laborious undertakings was his revision (6 vols.
1864) of _The Bibliographer's Manual of English Literature_ (1834) of
W.T. Lowndes. The plan includes bibliographical and critical notices,
particulars of prices, &c., and a considerable addition to the original
work. It had been one of Bohn's