The structure on the human face that contains the nostrils and organs of smell and forms the beginning of the respiratory tract
a tube a few inches long with a fine nozzle at the top, is mounted as in fig.
One of these opened from the nozzle into the cylinder, the other from the cylinder into the outside air.
He then casts it into its final form through a nozzle in the bottom of the casting ladle, as in the Bessemer process.
Or it may be revealed by placing a sensitive flame of the kind described below with its nozzle at the focus.
It consisted of a spherical glass vessel opening below by means of a stop-cock and narrow nozzle into the cylinder of an "exhausting syringe," which inclined upwards from the extremity of the nozzle.