human
I believe it would be found that the compound (carburet of azote) is the basis of the miasmata which produces malignant, bilious diseases.... Marsh miasmata are generally the cause of intermittent fevers. Now under particular circumstances of action may we not admit the generation of carburet of azote or cyanogen, and if so, as it readily unites with hydrogen, may it not be the miasma which produces malignant bilious fevers, since it is known that hydrocyanic acid is destructive to animal life and a most virulent poison?... Miasmata of some kind are the cause of yellow fever. For our part we believe it to be carburet of azote, or of some of its combinations, and of these that with hydrogen, from its deleterious character, seems to be the one.