1042 



HANDBOOK OF PHYSIOLOGY ^ NEIIROPHYSIOLOG Y II 



FIG. 2. Vcntrocaudal part of the supraoptic nucleus of the 

 dog, showing neuron cell bodies and processes with varying 

 amounts of neurosecretory material. Two large vesiculated 

 neurons (vesicles of Verney) contain a large amount of neuro- 

 secretory material and normal nuclear structures. Chrom- 

 hematoxylin-phloxin stain. X 250. 



FIG. 3. Neuron from the supraoptic nucleus of the dog, 

 showing clearly the peripheral distribution of the neurosecre- 

 tory material in the axon. Chromhematoxylin-phloxin. X 625. 



FIG. 4. Herring body in the central portion of the posterior 

 lobe with lobular accumulations of neurosecretory material 

 around the periphery and a clear central area. Chromhematoxy- 

 lin-phloxin. X 490. 



FIG. 5. A large Herring body (90 iji) from the median emi- 

 nence of Caltilhnx (Hapalr) pemcillala showing a clear central 

 area. Chromhematoxylin-phloxin. [From Hanstrom (151).] 



FIG. 6. Neurosecretory libers of the dog, originating in the 

 para\'entricu!ar nucleus ^aboir), reach the supraoptic nucleus 



