308 



EXPERIMENTAL PHARMACOLOGY 



burettes contain nicotine (one-half per cent) and adrena- 

 line. Stimulate the vagus nerve on the side on which the 

 eye record is being taken. What conclusions can you draw? 

 Bring all writing points on to the drum and take a nor- 

 mal record. Inject one cubic centimeter (twelve kilo dog. 

 less if tire animal is smaller) of nicotine and record the 



Mercury bulb 



or funnel - -- 



Antechamber 



Syrinqe point 

 Perforai-ed cork 



OpHc chiasma 

 Perforated cork I 



Fig. 271. Arrangement of apparatus for recording intraocular pressure. 



result. Stimulate the vagus nerve again and see what 

 happens. Explain. Inject one-half cubic centimeter of 

 adrenaline. Wait a sufficient time for the results to wear 

 off. What conclusions can you draw? What mechanical 

 factors are involved! Inject one cubic centimeter more of 



