g6 JouDial of Comparative Neurology and Psychology. 



finer details are often lost by the washing out of the stain in 

 running the preparations up through the alcohols. By study- 

 ing preparations by both methods I thus did away with the dis- 

 advantages of each. Many mounts were made between two 

 cover glasses, allowing the use of an oil immersion from both 

 sides. This is a distinct advantage when whole mounts are em- 

 ployed. 



The frog's palate is innervated chiefly if not exclusively by 

 the Ramus palatinus of the seventh cranial nerve (facialis). 

 Each palatine branch (Fig. i) passes down to the roof of the 



R. praecho 



Er. postorb. 



Fig. I. The roof of the frog's mouth with the integument dissected away 

 to show the course of the palatine nerves. R. palatinus, palatine nerve; R. 

 com7ii. V. 2, Ramus communicans of the trigeminal nerve; a, b, points at which 

 nerve was severed. (After Gaupp). 



mouth immediately anterior to the lateral process of the basi- 

 sphenoid, runs nearly straight cephalad and then, bending sharp- 

 ly laterad, joins the Ramus communicans of the trigeminus. 

 Along its course the nerve gives off many lateral twigs, the 

 fibers of which interlace to form an intricate plexus of medul- 



