BIBLIOGRAPHY ON METABOLISM 519 



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Pirson, A,, and Grosse, W,, Zur Rolle des Natriums im anaeroben 

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Coleman, G, S., The effect of DL-glutamic acid on the growth of 

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Petrova, E. A,, The morphology of sulfur purple bacteria of the genus 

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Tuttle, A. L., and Gest, H,, Induction of morphological aberrations in 

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Kondrat'eva, E, N., and Uspenskaya, V, E., The formation of vitamin 

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Haywood, A, M., Gray, E. D,, and Chargaff, E., Pulse-labeled ribo- 

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