Magister Fritz Kalckar**See Introduction to Part II, p. [119].

[Tribute to Russell]**See Introduction to Part II, p. [120].

A Fruitful Lifework**See Introduction to Part II, p. [128].

Hendrik Anthony Kramers††See Introduction to Part II, p. [116].

Introduction to Part II

Introduction to Part II

A Shining Example for us all**See Introduction to Part II, p. [114].