CONTENTS 



CHAPTER PAGE 



I. BlOPHYSICALLY ACTIVE X-RAYS 1 



II. Applied Radioactivity 55 



III. Biophysical Characteristics of the Eye 100 



IV. Emission and Absorption of Biophysically Active Light 133 



V. The Structure and Properties of Surfaces and Membranes . . . 170 



VI. The Biophysical Problem of Nerve Conduction 211 



VII. Auditory Biophysics 253 



VIII. The Compound Microscope; The Electron Microscope 311 



appendices 



1. Physical Constants 353 



2. Problems 355 



Name Index 361 



Subject Index 367 



/^ 



37987 



VII 



