384 A. E. HILTON ON PLASMODIA OF BADHAMIA UTRICULARIS. 



whole of the interior surface of the tube. A small hole is bored 

 through the cork to admit air without allowing too much 

 evaporation ; or the cork may occasionally be removed. If 

 necessary, a drop or two of water can be added now and then, to 

 keep the air moist. Only plain water should be used. When 

 the sclerotium revives, the plasmodium creeps on to the glass on 

 either side of the ring of paper, and the reversing currents can 

 then be seen by placing the tube on the stage of the microscope 

 and throwing the light up through it from the mirror beneath. 

 A 1 inch objective, focused on the veins of the spreading 

 plasmodium, shows the streaming movements quite plainly. The 

 sclerotium should be placed in the tube the day before the 

 plasmodium is required for exhibition. 



Joarn. Quekett Microscopical Club, Ser. 2, Vol. XII., No. 75, November 1014. 



