232 



BOTANICAL GAZETTE 



[SEPTEMBER 



complete removal of all the gas originally present. The cut end 

 of the now air-filled stipe was corked and anchored at the surface 

 of the sea as previously described. 



Fig. i 



Fig. 2 



from 



The 



plants was made after various intervals of submergence, 

 typical data given in table I show clearly the gradual formation of 

 carbon monoxide, accompanied by the appearance of carbon 

 dioxide, which latter was undoubtedly due to decay processes, 



