Herrick-Coghill, Nerve Endings in the Skin. 55 



PLATE VII. 



Fig. 2^. Section from a different part of the skin with cellular nerve ter- 

 mini. This is probably to be explained as the result of the elongation of the 

 basal series of the epithelial cells. 



Fig. 26. Sensory bud from skin of axolotl, showing the tubular peripheral 

 ending of sensory cells with fine thread of protoplasm extending to periphery 

 and the basal connective with nerves. 



Fig. 2'/. Sensory bud from another part of skin. 



Ftg. 28. Similar bud in which the peripheral portion of the sensory ele- 

 ment seems divided. Explained as due to the shrinkage and " fraying out " of 

 the wall. 



Fig. 29. See Plate VIII. 



Fig. JO. Isolated supporting cells from specimens similar to Fig. 28, 

 stained with haematoxylin, picro-carmine and methylene blue. Are the blue 

 fibers nerves, or are they lines of precipitation in folds of the cell wall due to 

 shrinkage? Compare Fig. 11. 



Fig. ji. Cells from nasal cavity of leopard frog. 



Fig. j2. Nerve endings from skin of same to illustrate similarity to the 

 last. 



Fig. jj. Skin of gills of axolotl to show ganglion cells beneath the corium. 



PLATE VIII. 



Fig. /J. Pericellular nerve fibers from sensory bud of conger eel. 



Fig. lb. Intrabulbar endings in Bardies. (Roth 15 and 16 from LenhossSk.) 



Fig. 21. Skin of the axolotl showing nerve endings in or near the chroma 

 tophores and in the skin of the axolotl. Methylene blue. 



Fig. 22. Similar to Fig. 21, showing endings in layer of protoblasts. 



Fig. 2j. Perpendicular section through skin of axolotl stained intra vitam 

 with methylene blue and cleared in glycerine. The plexus beneath the corium. 

 is clearly visible. 



Fig. 2g. Cells similar to to Fig. 28, stained with methylene blue. 



Fig. 34. Surface view of methylene blue preparation, similar to Fig. 2,1, 

 showing connection of ganglion cells with nerve bundles. 



Pig- 35' Same as Fig. 34. 



Figs. j6, J/. Ganglion cells of large ramose form from same layer as above. 



J^ig, jS. Relation of nervous reticulum below the corium to the capillaries. 



Fig. jp. Chromatophore-like ganglion cells. 



