264 ox THE ACTION OF SODIUM SULPHITE UPON PH^ENOGAMS. 



The poisonous action of the neutral sodium sulphite for 

 phccnogams is however quite evident with the developed plants. 

 But whether this fact explains sufficiently well the noxious action 

 also of amidosulphonates has to be decided by further experi- 

 ments. 



