Abstract
CONTENTS
I. Introduction 383
II. Secondary reactions of recoil atoms in organic compounds. The "apparent isotopic effect" and its origin 383
III. The behaviour of recoil atoms in inorganic systems 385
IV. The influence of the chemical state of the recoil atoms on subsequent reactions in which they take part 387
V. The isotopic effect regarded as the result of super-thermal ion–molecule reactions 389