OF THE CALABAR BEAN. 



759 



b. Tension of the Arterial and Venous Systems. 



Experiment LIX. 



Performed on a large retriever dog, vigorous and in perfect condition. 



Time. 



H. M. 



2 58 



3 10 



3 2 







3 3 







3 4 







3 5 







3 6 







3 7 







3 8 







3 8 30 



3 9 







3 10 







3 12 







3 13 







3 14 







3 15 







3 15 30 



3 16 







3 16 



15 



Time 

 after 

 Adminis- 

 tration. 



Arterial Tension. 



Mean 

 Pres- 

 sure. 



3 16 30 

 3 17 

 3 17 30 



3 17 35 

 3 17 45 

 3 17 50 

 3 18 



3 18 30 

 3 19 



3 19 15 

 3 19 30 



3 20 



30 



1 



1 5 

 1 15 

 1 20 

 1 30 



2 



2 30 



2 45 



3 



3 30 



5-8 

 6 

 60 

 60 

 6-2 

 70 

 61 

 5-5 

 6-3 

 5-9 

 5-4 

 5-9 

 56 

 56 

 5-5 

 66 



6-0 

 43 



4-9 

 65 



70 

 8-4 



79 



7-3 



65 



54 



Pressure 

 Oscillates 

 between 



4-3 & 



50 



4-5 



46 



50 



50 



4-0 



50 



33 



30 



40 



40 



4 5 



4-5 



5-0 



50 



7-0 

 7-0 

 7-5 

 7-0 

 80 

 8 

 7-0 

 7-0 

 7-0 



Venous 

 Ten- 



7-0 

 7-0 



4-0 7-0 



4-0 110 

 50 11-5 



5-2 11-9 



5-5 12-0 

 5-0 10'0 



50 90 

 4-5 8-0 



40 8-0 



28 

 2-4 

 2-2 

 2-2 

 1-9 

 1-7 



1-7 



3-4 



3 4 



34 



34 



No. of 

 Cardiac 

 Contrac- 

 tions. 



No. of 

 Bespira- 



tions. 



PerMin. Per Min. 



120 



126 

 132 



Tem- 

 perature 



10 

 10 

 12 



120 



78 



54 



40 



99-2 

 99-8 



1000 



999 



10 



11 



99-9 



100-2 



1004 



Notes of Operations and of 

 Symptoms. 



The right carotid artery was 

 exposed, and attached to the 

 hsemadynamometer. 



The left jugular vein was at- 

 tached to the second haema- 

 dynamometer. 



The dog seems perfectly calm. 



Commenced the injection of six 

 grains of extract, in twenty 

 minims of water, into the 

 right jugular vein. 



The injection was finished. 



The muscles are twitching ; 

 faeces passed. 



Urine passed ; saliva is escap- 

 ing from the mouth in large 

 quantity. 



The twitches are now severe, 

 and have a spasmodic char- 

 acter. 



No movement of the eyelids 

 when the cornea or conjunc- 

 tiva is touched. 



The muscular twitches have 

 become less marked. 



VOL. XXIV. PART Til. 



9u 



