a high intensity of the reactions to lactate dehydrogenase and glucous-6-phosphate dehydrogenase was demonstrated histochemically in the neural anlage of the chick embryos after 15 , 20 , 24 , 30 , 44 , 48 and 72 hours of incubation .
C0022917
lactate dehydrogenase
C0030016
dehydrogenase