INTRODUCTORY.
somewhat higher, a glass tube about the size of one's finger
simply slipped over the side arm of the distilling flask serves as
an ai* condenser (Fig. 8). If bad smelling or corrosive gases
Fig. 6.
Fig. 7.
are produced during the distillation, a suction bottle fitted to
the condenser tube is used as receiver and the side arm of the
bottle is connected to a tube which leads into the ventilating
flue of the hood.