15031
Open
Frederik Wellmann
c. 1902
A. MS.
Publication (2.1-118) is from CSP's typewritten copy, with a few omissions consisting of repetitions and asides.
Logic (modal see Modality), Minute Logic
pp. 1-170, with variants and a typewritten copy which differs only slightly from the original pp. 1-50, with variants, of an incomplete first draft
1902~
MS0425_087
(Logic)
c. 1902