Series consists of correspondence related to Spring's attempts to reengage the Canadian government on the issue of monetary settlement for losses sustained due to the renewal of the “Modus Vivendi.” The series includes incoming letters from various government officials to Charles Spring, as well as copies of incoming letters to other parties acting in collaboration with or on behalf of Spring. Incoming correspondence is frequently annotated by Spring with notes or drafts of replies. In addition, the series contains drafts and fair copies of Spring’s outgoing letters and related petitions, memorials, and other documents. The first file of the series contains an index created by Spring of select letters from 1892 to 1928 entitled, "List of letters, referring to correspondence on Modus Vivendi Claims for Season 1892." The letters included in this index are scattered throughout the series files. The correspondence is arranged in chronological order.