614 SPECIAL HISTOLOGY. 



it, pervades the entire layer, and forms the boundaries of very nume- 

 rous, closely-approximated compartments, 0-016-0-02, or even 0-03 of 

 a line in diameter, which extend in a vertical direction from without to 

 within, through the entire thickness of the cortex. In these compart- 

 ments is lodged a granular substance, subdivided by delicate, oblique or 

 transverse dissepiments, into larger and smaller aggregations, which 

 Ecker describes as gland-follicles, and as containing, within a structure- 

 less membrane, a granular material mixed with nuclei or even cells. 

 But in these " cortical cylinders," as I would term them, I have, in 

 most instances, noticed nothing but rounded-angular cells, 0-006-0-012 

 of a line in size, and believe that Ecker, from the more rare occurrence 

 of true follicles, has been induced to regard the compact aggregations 



Fig. 253. 



of so-termed cells which occur in the interior of the cortex, and which 

 are 0-0240-0480-06 of a line long, as special follicles. In fact, the 

 cortical cells, which, on the external and internal portions of the cortex, 

 are to be met with more isolated in the compartments, are in its inte- 

 rior, closely united into oval or cylindrical masses, in which the outlines 

 of the cells have frequently coalesced into a single, general contour-line. 

 I have never been able to detect any other membrane surrounding the 

 cells besides the connective tissue of the corresponding compartment, 

 and I have almost always succeeded, by pressure, or the addition of 

 alkalies, in isolating the cells, without bringing into view any special 

 sac. True follicles, I have hitherto seen only in the inner portions of 

 the cortex, in the form of round or oval vesicles 0-02-0*8 of a line in 

 diameter, within which no cells like those of the cortical cylinders are 

 formed, but only a collection of oil-drops could be recognized, arid which 



FIG. 252. Portion of a vertical section through the cortex of the suprarenal body in Man : 

 a, septa of connective tissue; 6, cortical cylinder, whose composition out of cells is more or 

 less distinctly manifest. Magnified 300 diameters. 



FIG. 253. From the suprarenal body of Man : a, five cells filled with pale contents, from 

 the summit of a cortical cylinder; 6, pigment-cells from the innermost layer of the cortex; 

 c, fat-containing cells, from the yellow cortical layer; d, a larger cyst filled with fat, from a 

 cortex of that kind (gland-follicle, Ecker) ; e, cells from the medullary substance, some with 

 processes. Magnified 300 diameters. 



