Home / Guided Primary Source Analyses / Featured Source: Litteratura Iuris Guided Primary Source Analyses Featured Source: Litteratura Iuris August 31, 2013March 15, 2020 Sifting out unwanted heads: A gruesome metaphor for collection development from the title page of Karl Ferdinand Hommel’s Litteratura Iuris (second edition), 1779. Learn more from In Custodia Legis: Law Librarians of Congress blog.