iqiq] 



HAAS—RESPIRA TION 



357 



in 135 minutes. After such treatment the material becomes green. 

 It was placed in sea water for 14 minutes; it lost its crispness and 



TABLE III A 

 Change in PH value of sea water produced by respiration of Laminaria during 2 



PERIODS (31.25 MIN. each) IN SEA WATER AND DURING 6 SUBSEQUENT PERIODS 

 IN SEA WATER CONTAINING 24.2 PER CENT (bY VOLUME) OF ETHYL ALCOHOL 



* Appro.ximate (at this point the indicator is not very sensitive to changes in PH). 



TABLE III B 



Net ELECTRICAL RESISTANCE OF Laminaria in sea water 



AND IN SEA water CONTAINING 24 PER CENT (bY 

 volume) of ethyl alcohol, EXPRESSED AS PER- 

 CENTAGE OF NET RESISTANCE AT START OF EXPERI- 

 MENT AT 13.3° C. 



became flaccid. The relative amount and relative rate of respira- 

 tion of pieces of Lammaria were determined before and after the 



