- FondsSylvester - Papers of James Joseph Sylvester
- SeriesBox 2-7 - Letters
- SubseriesBox 2-3 Folder 2-9 - Letters to JJS
- Item1 - A.L.s., in French, from B. Boncompagni, Rome
- Item2 - A.L.s., from George Boole
- Item12 - A.L.s., from Mr Brett, MacMillan & Co, London
- Item13 - A.L.s., in German, from L. Brill, Darmstadt
- File14-24 - A.Ls.s., from Arthur Buchheim
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