POISONOUS ACTION OF ALCOHOLS UPON DIFFERENT ORGANISMS. 976 



In experiments with methylic and ethylir; alcohols of higher con- 

 centrations, of 1^*^'/,, and 3*^*/o- I found that while l^"/,j ethylic alcohol 

 had killed in l^ I honi's the ttn'nip germs, methvlic alcohol had not 

 killed them even when of tlie strength of o"/^,. 



In other experiments the action of propylic alcohol was compared 

 with that of allylic alcohol on vouiig so/a l)eans Avhicli had reached the 

 height of 15 cm. in watei'-cnltnre. One plant was placed in 50(1 c. c. 

 ofn.l'Y,, solutions of each alcohol. That in the allylic alcohol died 

 on the ord dav, while that in the propylic alcohol was not injured. A 

 similar experiment was carried out upon pea plants ahout 85 cm. 

 long. The lower three leaves of the plant placed in allylic alcohol 

 (0.17,,) t'li-iied veliow and dried up in o davs. and its upper leaves 

 in 5 days ; and the ])l;int itself was found dead in 7 days. In a 

 control experiment, also no iiijui'ions effect was ol)served in the case oi 

 propylic alcohol. 



1. In the case of amylic alcohol turnip seeds were al.so killed in the 0.3 % solution. 



2. In a few turnip seeds the cotyledons showed some development, but in none did 

 the I'ootlets of the eiubrvo show anv. 



