CONTENTS. 
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CHAPTER PAGE 
INTRODUCTION ..- eee eee eee eee 1 
I. Srructure oF THE Mepusz wae ae 10 
II. FUNDAMENTAL EXPERIMENTS “= eee sos «2G 
III. Experiments IN STIMULATION oes a 37 
IV. Experiments In Secrion or Coverep-EveD MEpDuUs& 65 
V. ExXperIMeNts In SECTION oF NAKED-EvED MeptusH 104 
VI. Co-oRDINATION... eae ome ue sca 130 
VII. Natural RHYTHM” ... eos ves ees 146 
VIII. ArRtTiFicIaL RHYTHM... eae awe eet kD 
IX. Poisons ... nee =e ees soe 213 
X. Srar-FisH AND SEA-URCHINS eee ae wee | DOA 
