34 



OECHSLIN. 



iodide or tungstic acid solution gave no precipitation; no alkaloid was therefore 

 present. The bitter taste was intense, but 5 to 10 cubic centimeters injected 

 subcutaneously into a guinea pig infected with surra did not result in the disap- 

 pearance of the trypanosomata. No furtlier physiologic tests were made. 



COMPOUNDS TESTED FOK ACTION ON TRYPANOSOilATA. 



Tinospora reticulata Miers extract (macabuhay) 

 Phenylhydrazine hydrochloride, dissolved and the free 



base suspended in water. 

 Formylphenylhydrazine {aa methyl-^ formylphenylhy- 



drazine) 

 an Slethylphenylhydrazine 

 Ethylmercaptane 

 (Potassium cyanide) 

 Tin tartrate 

 Potassiimi iodide 

 Azimidol 



Dimethylamidophenyldichlorarsin 

 Benzarsinious chloride quinine ester 

 Arsenobenzoie acid quinine ester 



Benzarsinic acid quinine ester 



Dibenzarsinic acid diquinine ester 

 Acetylphenylglycinarsinic acid quinine ester 



Hydrazine. 

 Hydroxylamine. 



Semicarbazid. 



Pikrotoxin. 

 . Curare. 

 Nicotine. 

 Coniin. 

 Berberine. 

 Chinotoxin. 

 Quinine. 



Quinine peroxide. 

 Cinchotinin, cinchote- 



nin ethyl ether. ■ 

 Apoquinine ( tartrate, 



oxalate, nitrate). 

 Oxalic acid. 



