Abstract
A transcription of Russell's marginal comments in his copies of Frege's works, from his readings of Frege in 1902. The greatest number are in the early sections of _Grundgesetze der Arithmetik_, Vol. I, but there are also marginal comments in _Begriffsschrift_, _Grundlagen der Arithmetik_, "Ueber Formale Theorien der Arithmetik", "Ueber Begriff und Gegenstand", "Function und Begriff", "Kritische Beleuchtung einiger Punkte in E. Schroeders..." and two corrections of typographical errors in "Ueber Sinn und Bedeutung".