JOURNAL OF MICROSCOPICAL SCIENCPI 



DESCRIPTION OF PLATES V & VI. 



Illustrating Mr. Darwin's paper on the Anatomy of the 

 Sympathetic Ganglia of the Bladder in their Relation to 

 the Valvular System. 



PLATE V. 



Figs. 

 1. — Posterior surface of the bladder of a young dog, stained with chloride 

 of gold, seen under a very low power. It shows the distribution of 

 nerve-trunks and ganglia in relation to large branches of blood-vessels. 

 The blood-vessels are coloured green, the nerve-trunks and ganglia 

 are purple. 



2. — From a dog's bladder stained in chloride of gold, showing an artery 

 and vein with the accompanying plexus of nerve-trunks and ganglia. 

 Hartnack, No. 4. 

 Ay Artery (red). 

 . Aj. Vein (blue). 

 B, B. Nerve-trunks (purple), 

 c, c. Ganglia (purple). 



