448 S toward. — On Endospermic Respiration in Certain Seeds. 
agency of respiratory enzymes, the genesis of which occurred before the 
seed entered on the resting period, remains undecided. 
2 . The evidence of the possession of vitality by the aleurone layer, 
hitherto based chiefly on cytological and enzymic investigation, is rein- 
forced by the results here recorded. 
University Botanical Laboratory. Birmingham. 
March , 1908. 
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