W. F. Exner. Ausstellungs-Bibliothek. izCt VIENNA UNIVERSAL EXHIBITION, 1873- OFFICIAL CATALOGUE American Department Edited by EBEN BREWER, For the United States Commission. \*:*V J2 -H O CQ KD I r-i !s E-i S: PRINTED AND PUBLISHED BY J. M. JOHNSON & SONS, 3, CASTLE STREET, HOLBORN, AND 56, HATTON GARDEN, LONDON, AND VIENNA EXHIBITION. SOLD BY ALL BOOKSELLERS.