608 
MR. E. C. BABER OR THE STRUCTURE OF THE THYROID GLAR'D. 
2. Section of an “ undeveloped portion,” with an indication of its convoluted 
cylinders. 
3, 3 , 3. Ordinary gland-tissue, the vesicles being represented diagrammatically 
and in outline. (Obj. 0, oc. I.) 
Fig. 20. From the same gland. Section of part of an “undeveloped portion” 
seen under a high power. 
1, i, i. “ Cylinders of cells.” 
2, 2, 2. Septa of connective tissue and blood-vessels separating these. 
3, A “cylinder” from which the epithelial cells have partly fallen out. 
(Obj. F, oc. I.) 
