STROPHANTHUS SARMENTOSUS : ITS PHARMACOLOGICAL ACTION. 



397 



Experiment LXVII, (Rana temporaries). — Einger's solution ; then extract of 

 S. sarmentosus in Ringer's solution (1 in 10,000) ; then digitalin in Ringer's solution 

 (1 in 20,000). (Plate IX.) 



Time in Minutes. 



Flow per Minute 

 in c.c. 



Time in Minutes. 



Flow per Minute 

 iii c.c. 



Time in Minutes. 



Flow per Minute 

 in c.c. 



1 



2-3 



30 



2-4 



61 



2-0 



2 



2-7 



31 



2-3 



62 



2-1 



3 



2-7 



32 



2-4 



63 



2-0 



4 



2-5 



33 



2-6 



64 



1-8 



5 



2-5 



34 



2-5 



65 



2-0 



6 



2-5 



35 



2-3 



66 



1-9 



7 



2-5 



36 



2-4 



67 



1-9 



8 



2-5 



37 



26 



68 



1-8 



9 



2-4 



38 



2-4 



69 



1-9 



10 



2-6 



39 



2-2 



70 



1-9 



11 



2-6 



40 



2-4 



71 



2-0 



12 



2-5 



41 



25 



72 



1-8 



13 



2-5 



42 



23 



73 



1-8 



14 



2-5 



43 



2-2 



74 



1-8 



Strophantus perfused. 



44 

 45 



2 3 



2-4 



Digitalin perfused. 



15 



2-5 



46 



21 



75 



1-8 



16 



2-4 



47 



2-3 



76 



1-9 



17 



2-4 



48 



2-1 



77 



1-8 



18 



2-3 



49 



2-4 



78 



0-7 



19 



2-4 



50 



2-2 



79 



5 



20 



2-2 



51 



2-2 



80 



0-4 



21 



2 5 



52 



2-1 



81 



0-4 



22 



23 



53 



23 



82 



03 



23 



2-3 



54 



2-1 



83 



0-2 



24 



2-4 



55 



2-0 



84 



0-3 



25 



2-5 



56 



20 



85 



0-1 



26 



2-4 



57 



2-2 



86 



o-i 



27 



2-2 



58 



2-1 



87 



o-i 



28 



2-4 



59 



2 







29 



2-6 



60 



1-9 







The frog weighed 30 grams before and 35 grams after the experiment — a gain of 

 5 grams. 



In 60 minutes this solution of & sarmentosus extract had caused a slight 

 diminution in the outflow; 10 minutes after the perfusion of digitalin, the vessels 

 were almost occluded. 



TRANS. ROY. SOC. EDIN., VOL. XLVII. PART II. (NO. 15). 



[Experiment LXVII I. 



59 



