From this page you can browse articles translated and published online by English or French title, category of knowledge, or both. You can also browse all of the plates (whether or not the accompanying text has been translated) by English or French title. Also see auxiliary material such as the Map of the System of Human Knowledge.

Title Tître
Ugliness Laideur
Ukraine Ukraine
Understand, To Comprendre
Unicorn Licorne
Unicorn Fossil Licorne fossile
Unigenitus, Constitution Unigenitus, constitution
Unitarians Unitaires
University Université
Uproot, To Arracher
Ursa Ourse
Ursa Ourse
Usurpation Usurpation
Usurpation Usurpation
Uterus Uterus
Uzerche Uzerche