Sir 



Roy. Soc. Edin. 



Vol. XLVII. 



'homas R. Fraser and Mr Alister T. Mackenzie on Strophanthus sarmentosus : its Pharmacological Action 



and its Use as an Arrow-poison. — Plate XIa. 



3-h-io 



Fig. 3. 



3-37-0 



,^^^*^^wv>rtv/v«V ft ^ nA '''** nfl ^^ 



WmmMIMMIIM^^ 



3-Z&-30 



Fig. 2. — After Strophanthus. 



Fig. 4. 



3-uoo 



Fig. 5. Fig. 6. 



Experiment LXX.— Blood-pressure Tracings. Extract of Strophanthus. Reads left to right. 



