This series has two sections, Onsager Text and No Onsager Text , each of which is in chronological order. The folder headings in Onsager Text specify the names and dates of the conferences and the types of Onsager texts included in the papers, but they do not describe whatever other kinds of material may be present. The numbers in parentheses after the specifications of certain texts (e.g., "(no. 30)" in folder 1) correspond to the numbering of Onsager publications in the Royal Society bibliography, as shown in Series III, folders 3-79. The folder list for No Onsager Text is a simple sequence of dates, with no naming of the conferences and no description of the papers.