Texts and Important Articles, 1918-1978

Contains drafts, notes and various versions of Experience and Conceptual Activity, Flow Equations for Composite Gases, Het Atoommoddel van Rutherford-Bohr, Causality and Anticipation," "Statistical Problems connected with Asymptotic Solution of the One-dimensional non-linear diffusion equation," "Flow in Spherical Layers," and reviews for Physics of Fluids. Also included are copies of "Ervarig en Conceptie," possibly an earlier version of Experience and Conceptual Activity or "Experience and Conception." These articles have been separated from Series 4 because they either represented preliminary chapters of an unpublished text or provided groundwork for chapters in Burgers' existing textbooks.