Introduction to Muscle Physiology．＆WALLACE O．FENN 1
Muscle Function as Studied in Single Muscle Fibers．＆ROBERT W．RAMSEY and SIBYL F．STREET 9
Muscle and the Heart＇s Motto．＆FREDERICK H．PRATT 35
Muscle Excitability．＆HENRY A．BLAIR 51
Action Potentials and Conduction of Excitation in Muscle．＆EMIL BOZLER，with discussion by A．S．GILSON，JR 95
Conduction in Smooth Muscles．＆ARTURO ROSENBLUETH 111
The Local Activity Around the Skeletal N-M Junctions Produced by Nerve Impulses．＆T．P．FENG 121
Action Potentials of Skeletal Muscle．＆ALLAN C．YOUNG 153
The Regulation of Energy Exchange in Contracting Muscle．＆DUGALD E．S．BROWN 161
The Action of Muscles in the Body．＆HERBERT ELFTMAN 191
Changes During Muscle Contraction as Related to the Crystalline Pattern．＆ERNST FISCHER，with discussion by FRANCIS O．SCHMITT 211
The Significance of Oxidations for Muscular Contraction．＆OTTO MEYERHOF 239
The Efferent Innervation of Muscle．＆C．A．G．WIERSMA 259
On the Nature of Certain Diseases of the Voluntary Muscles．＆G．D．GAMMON，R．L．MASLAND and A．M．HARVEY 291
Theories of Electrolyte Equilibrium in Muscle．＆ROBERT B．DEAN 331
Electric Potential Changes Accompanying Neuromuscular Transmission．＆J．C．ECCLES，B．KATZ and S．W．KUFFLER 349