^ LIST OF ILLUSTKATIONS 



I 



SECTION II 



THE THYROID GLAND AND ITS DISEASES 

 Anatomy, Embryology, Comparative Anatomy and Histology 



E. V. COWDRY 



PAGE 

 FIGURE 9nfi 



1. Dissection of human thyroid gland 



2. Scheme of the innervation of the thyroid gland 208 



3. Scheme of the development of the human thyroid gland . ... 211 



4. Section of human thyroid gland with rather lobulated follicles com- 



pletely filled with optically homogeneous colloid substance ... 214 



5. Portion of wall of human thyroid vesicle showing close association of 



clear droplets with individual cells 215 



6. Section of an opossum's thyroid showing two types of cells and intra- 



cellular crystalloids . . 216 



7. Section of a pigeon's thyroid prepared by Cajal's uranium and silver 



nitrate method 217 



8. Diagram illustrating the polarity of an acinus cell of the pancreas . . 218 



Physiology and the Experimental Pathology of the Thyroid Gland 



SWALE VINCENT 



1. Photograph of a group of thyroidectomized sheep taken five months 



after operation 228 



2. Photograph of cretin lamb about one year old, and of normal lamb of 



eleven months 229 



Pathological Anatomy and Histology of the Thyroid 



DAVID MARINE 



1. Cross section of endostyle organ of Holocynthia johnsonii with ad- 



jacent parts of branchial (pharyngeal) sac 269 



2. Cross section of endostyle organ of Amphioxus calif., showing its 



relation to branchial (pharyngeal) sac and gill filaments .... 269 



3. Cross section of the endostyle organ of Ammocoetes branchialis taken 



through its duct 270 



4. Cross section of the thyroid area of Ammocoetes branchialis in the 



last stages of metamorphosis 270 



5. Normal thyroid of bony fish (Salvelinus fontinalis) composed of 



scattered, rounded alveoli 271 



f>. Normal thyroid of common fowl (Gallus domesticus) 272 



7. Normal thyroid of the sheep . 272 



Normal human thyroid showing trabecula and its relation to stoma . 273 

 9. Active hyperplasia thyroid of bony fish (Salvelimus fontinalis) illus- 

 trating the vascularity and alveolar distortions 275 



10. Active hyperplasia, marked degree, in thyroid of bony fish (Salvelinus 



fontinalis) giving papillary effect .... 275 



