THE THYROID GLAND 55 



perfect, and an ugly parenchymatous goitre 

 forms and lasts for life. Thyroid feeding, if 

 begun early, will enable the gland to meet the 

 demands made upon it ; the overstrain will cease 

 and the hypertrophy disappear. Many an ordi- 

 nary goitre in later life can be much reduced 

 by thyroid when the external use of iodine 

 has done all that it can do ; especially that 

 troublesome enlargement of the gland backward 

 which causes difficulty in deglutition will dis- 

 appear. 



