feeble in the morning before dinner than in the afternoon. He concludes from this that the nitrogen in the atmospheric air does not play an entirely passive role in respiration which is evidently contrary to the experience of MM. Reg nault and Reiset. It is natural to suppose that nitrate of ammonia present in saliva plays an important part in di gestion. 1872 SCIENTIFIC AMERICAN INC, 1872-05-18

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feeble in the morning before dinner than in the afternoon. He concludes from this that the nitrogen in the atmospheric air does not play an entirely passive role in respiration which is evidently contrary to the experience of MM. Reg nault and Reiset. It is natural to suppose that nitrate of ammonia present in saliva plays an important part in di gestion. 1872 SCIENTIFIC AMERICAN INC, 1872-05-18

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