400 



EFFECT OF IREITATION OF A POLARIZED NERVE. 



Illustrative experiments — Continued. 



Num'ber of experiment. 



Irritation during polariza- 

 tion. 



Bemarka. 



4tli irritations . . 

 5th irritations.. 



183. 



1st irritations . . 

 2d irritations . . . 

 3d irritations . . . 

 4th irritations . . 

 5th irritations . . 



184. 



Ist irritations , . 



2d irritations 



3d irritations... 

 4th irritations.. 

 5th irritations.. 

 6th irrit.it ions.. 

 7th irritations . . 

 Sthiixitations.. 

 9th irritations.. 

 10th irritations. 

 11th irritations. 

 12th irritations. 

 13th irritations . 

 14th irritations. 

 15th irritations . 

 16th irritations. 

 17th Irritation 3. 

 18th irritations . 

 19thiiritations. 

 20th irritations. 

 21st irritations. 

 22d irritations.. 

 23d irritations.. 

 24th irritations. 

 25th irritations . 

 26th irritations. 

 27th irritations. 

 28th irritations. 

 29th irritations. 

 30th irritations. 

 31st irritations . 

 32d irritations. . 

 33d irritations- . 

 34th irritations. 

 35th irritations . 

 36th irritations. 



18-5. 



Ist irritations . . 

 2d irritations. .. 

 3d irritations. .. 

 4th irritations. . 

 5th irritations.. 

 6th irritations.. 

 7th irritations . . 

 8th irritations.. 

 9th irritations.. 

 10th irritations. 

 11th irritations. 

 12th irritations. 

 13th iiTitations. 

 14th irritations. 

 15th irritations. 

 16th irritations . 

 17th irritations. 

 18th irritations . 

 19th irritations. 

 20th irritations . 



7nm. 

 Contraction 10. 



Descending polarization : 



Contraction 5.9 



Contraction 5. 9 



Contraction 7.1 



Ascending polarization : 

 Contraction 6. 2 



Last preparation again nsed. 



Rana esculenta. 



10 grammes weight attached. 



Weight reduced to 2 grammes. 



Another portion of the nerve ir- 

 ritated. 



"Weight increased to 10 grammes. 



Eana esculenta. 



2 grammes weight attached to 

 muscle. 



Weight, 10 grammes. 



