Uncometary

The failure to see the comet previous to its sudden apparition near the Andromeda Nebula, its uncometary appearance, its peculiar freaks, and final utter disappearance from the heavens […]

The neon lines were fairly intense and are quite uncometary. It has been suggested to me that the cyanogen might have been generated during the fall of the meteorites by a reaction between atmospheric nitrogen and cohenite or carbon.