NEEVUS TERMINALIS: MAMMALS 



15 



Turtle embryos and young of Amia were prepared by various 

 methods and a number of dissections were also made. 



For nerve terminations the gold-chloride method was em- 

 ployed, according to the modification given by Hardesty. Meth- 

 ylene-blue was tried, but with less success in demonstrating the 

 sensory terminations to be described, although it brought out 



cen hem. 



ba.olf. ac. 

 ba.olf. 

 cri.pl. 

 olf.fi. 



Fig 1 Dissection of nervus terminalis of kitten of two weeks, illustrating 

 plexiform appearance of nerve, as seen through the binocular microscope. The 

 blood-vessels, along which the majority of the nerve strands course, are not 

 represented. 



the motor endings quite clearly. Both sensory and motor ter- 

 minations were shown in pyridin-silver preparations. 



A modification of the pyridin-silver method given by Huber 

 and Guild ('13) was used with good results. This modification 

 consisted essentially in lengthening the periods during which 

 the preparation was kept in the various fluids. Briefly summar- 

 ized, the procedure was as follows : Ammoniated absolute alcohol 



