Moisture Distillation Apparatus—The apparatus consists of a glass flask heated by suitable means and provided with a reflux condenser discharging into a trap and connected to the flask. The connections between the trap and the condenser and the flask should be interchangable ground-glass joints. The trap serves to collect and measure the condensed water and to return the solvent to the flask. The assembly of the apparatus is shown in Fig. 1 and the various components are described below.