CONTENTS. 



Preface. i 



SECT. I. Of Motion. 5 



II. Explanations and Definitions. 7 



III. The Motions of the Retina demonftrated 



by Experiments J 5 



IV. Laws of Animal Caufation. 3 2 



V. Of the four Faculties or Motions of the 



Senforium. 34 



VI. Of the four Cla/es of Fibrous Motions. 36 

 VII. Of Irritative Motions. 38 



VIII. Of Senfttive Motions. 43 



IX. Of Voiitntary Motions. 46 



X. Of Affbciate Motions. 50 



XI. Additional Observations on the Senforlal 



Powers. 54 



XII. Of Stimulus, Senforial Exert ian, and Fi- 



brous Contraction. 62 



XIII. Of Vegetable Animation. 106 



XIV. Of the Production of Ideas. 1 13 

 XV. Of the Cla/es of Ideas. 1 3 5 



XVI. Of Inftincl. 145 



XVII. The Catenation of Animal Motions. 2 2 1 



XVIII. Of Sleep. 235 



XIX. Of Reverie. 260 



SECT. 





