CONTENTS 



HAUE 



PREFACE . .... . v 



CHAPTER I 

 GENERAL CONSIDERATIONS 



Internal secretions and the organs which furnish them . 1 



The nature of the active principles of the internal secretions . 4 



Groupings of the chief endocrine glands ... .7 



Methods of determining the functions of the endocrine organs 8 



CHAPTER II 

 THE THYROID AND PARATHYROIDS 



Structure and development of the thyroid . . 12 



Structure and development of the parathyroids 16 



CHAPTER III 

 THE THYROID AND PARATHYROIDS (continued] 



Effects of removal of the parathyroids . 22 



Effects of parathyroid extract ... 26 



The mode of action and the nature of the parathyroid autacoid . 27 



CHAPTER IV 



THE THYROID AND PARATHYROIDS (continued) 

 Effects of removal and of atrophic degeneration of the thyroid : hypothyroidism . 29 



CHAPTER V 

 THE THYROID AND PARATHYROIDS (continued) 



Effects of increase of thyroid secretion : hyperthyroidism 35 



Clinical evidence relating to hyperthyroidism . 36 



CHAPTER VI 

 THE THYROID AND PARATHYROIDS (continued) 



The nature of the autacoid substances produced by the thyroid 40 



Interaction of the thyroid with other organs . . 41 



Influence of the nervous system on thyroid secretion . 44 



