I9I9] 



HAAS—RESPIRA TION 



361 



TABLE VI A 



Change in PH value of sea water produced by respiration of Laminaria dur- 

 ing 3 PERIODS (23 MIN. each) IN SEA WATER; AT END OF SECOND PERIOD MATERIAL 

 PL.^CED IN RUNNING TAP WATER FOR 1 9 HOURS; MATERIAL THEN PLACED IN SEA 

 WATER AT 22° C. FOR 34 MINUTES BEFORE BEGINNING THIRD PERIOD 



TABLE VII 



Control for VII A: 4 periods (25.5 min. each) in sea water; betw^een second 



AND THIRD PERIODS MATERIAL KEPT IN SEA WATER AT 1 6° C. FOR 70 MINUTES 



TABLE VII A 



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



4 PERIODS (28 MIN. each) IN SEA WATER; BETWEEN SECOND AND THIRD PERIODS 

 MATERIAL PLACED IN LARGE VOLLTME OF SEA WATER AND KEPT AT 35° C. FOR 70 



MINUTES 



