590 JOURNAL, BOMBAY NATURAL MIST. SOCIETY, Vol. XXIII. 



sistent with efficiency and therefore economy, that can be suggested for 

 trial in places where the weed is already thick enough to be cut and 

 dragged out in fairly large masses. In places where it is not clumped 

 together, it may be collected and either dragged into the current of streams 

 to be carried out to sea or thrown on to bamboo rafts or into boats to 

 be subsequently heaped upon the shores of the waters it infests and there 

 comiiletely burnt, when dry enough, if necessary, with the aid of an inflam- 

 mable material like Ye-7ian or Crude Kerosine Oil. As the plant easily takes 

 root and grows well on moist earth, burning it is one of the safest means of 

 destroying it. Thus dragging out to sea and burning are the only two 

 efficient methods of dealing with the weed ; and either is now practised 

 wherever it prevails. 



The weed is spreading rapidly in the country ; and it is high time now 

 that prompt and systematic measures and co-operation were enlisted in 

 attempts to its extermination, even, if need be, aided by the law." 



Editors. 



