DR THOMAS R FRASER ON STROPHANTHUS HISPIDUS. 



431 



Experiment CXXXVII. — Normal saline followed by solution of strophanthin in 

 saline, 1 : 100,000, and 50 min. afterwards by digitalin in saline, 1 : 50,000 (Plate XX.). 



Time in 



Flow per Min. in 



Time in 



Flow per Min. in 



Time in 



Flow per Min. in 



Minutes. 



Cub. Cent. 



Minutes. 



Cub. Cent. 



Minutes. 



Cub. Cent. 



1 



3-6" 





31 



2-6 " 





63 



2-6" 





2 



3-6 





32 



2-7 





64 



2-6 





3 



3-7 





33 



2-8 





65 



2-5 





4 



3-8 





34 



2-7 





66 



2-5 





5 



3-8 





35 



2-7 





67 



2-5 





6 



3-8 





36 



2-6 





68 



2-6 





7 



3-7 





37 



2-6 





69 



2-6 





8 



3-8 





38 



2-5 





70 



2-5 



.g 



9 



3-8 





39 



2-6 





71 



2-5 



J3 



-J-2 



10 



3-8 





40 



2-7 





72 



2-5 



J 



11 



3-7 





41 



2-6 





73 



2-5 



Q 



12 



3-8 





42 



2-7 





74 



2-5 





13 



3-8 





43 



2-7 





75 



2-5 



02 



14 



3 7 





44 



2-6 



pj 



76 



2-6 





15 



3-6 



a5 



. 3 



45 



26 



-+j> 



77 



2-6 





16 



3-7 



> ^ 



46 



2-6 



a 



78 



2-5 





17 



3-5 



£ 



47 



2-5 





79 



2-6 





18 



3-4 





48 



2-6 



p 



80 



2-6 





19 



3 3 





49 



2-5 



32 



81 



2-7 





20 



3-5 





50 



2-5 





Digitalin solution 



21 



3-4 





51 



2-6 





turned on. 



22 



36 





52 



2-7 





82 



2-8' 





23 



3:3 





53 



2-5 





83 



2-4 





24 



34 





54 



2-5 





84 



2 3 





25 



32 





55 



2-5 





85 



2-2 





26 



3-2 





56 



2-5 





86 



11 



.5 



27 



3-2 





57 



2-5 





87 



10 



Is 



28 



31 





58 



2-5 





88 



0-8 



.So 



29 



3-0 





59 



2-6 





89 



0-7 



P 



30 



2-9 





60 



2-6 





90 



0-4 





Strophanthin solution 



61 



2-6 





91 



0-4 





turned on. 



62 



2-6 





92 



0-2 





The frog weighed 412 grains before the experiment, and 502 grains at its termina- 

 tion, representing a gain of 90 grains by moderate oedema. The second part of this 

 experiment confirms the previous experiment by showing that 1 : 100,000 solution of 

 strophanthin produces no appreciable effect on the calibre of blood-vessels. After saline 

 had passed for 30 min., this solution of strophanthin left the flow unaffected at the end 

 of 51 min. When, however, a solution of 1 : 50,000 of digitalin was now passed, the 

 vessels rapidly contracted, and in 11 min. they had become reduced to one-fourteenth, 

 and had become practically occluded. 



VOL. XXXVI. PART II. (NO. 16). 



3 T 



