US Department of War—Weather Bureau
Underground Railway Company
United Kingdom Alliance
United Kingdom Temperance Alliance
United Services Museum
United States Chemical Laboratory
United States Corps of Topographical Engineers
United States Department of Agriculture
United States Eclipse Expedition to West Africa
United States Sanitary Commission
United States Signal Service State, Pike's Peak
Universal Peace Congress (1850), Frankfurt
Università degli Studi di Padova
Universität Dorpat
Université de Sorbonne
Universiteit Gent—Museum Voor Dierkunde
Universiteit Leiden
University College Hospital Medical School
University College London
University College School
University of Aberdeen
University of California—Lick Observatory
University of California
University of Cambridge
University of Cambridge—Botanic Garden
University of Cambridge—Press
University of Chicago
University of Columbia
University of Columbia—School of Mines
University of Edinburgh
University of Glasgow
University of Glasgow—Library
University of Göttingen
University of Hamburg
University of Harvard—Observatory
University of Heidelberg
University of Leiden
University of London
University of London—Brown Institute for the Study of Animal Diseases
University of Marburg
University of Oxford
University of Oxford—Bodleian Library
University of Oxford—Botanic Garden
University of Oxford—Pitt-Rivers Collection
University of Paris
University of St Andrews
University of Strasbourg
University of Toronto
University of Tübingen
University of Utrecht
Urania Gesellschaft, Berlin
Ushaw College—Waterton's Museum
USS Jeannette
USS Keokuk
USS Merrimac
USS Miantonomoh
USS Monitor
USS Niagara
USS Pawnee
USS Plymouth