Apparatus for Freezing in Vacuo. The Cryophorus.—Take a tube one-third of an inch or rather more in diameter, and pretty thick in the sides. Blow a bulb at each end; the first at the sealed part of the tube, the other at the open point; then give to the tube the curvature represented by [pl. 3], fig. 32. Introduce as much water as will half fill one of the bulbs; make the water boil, and draw off the point and seal the apparatus during the ebullition.
Apparatus for conducting Water in bent Tubes.—Solder a funnel (see Funnels) to the end of a tube; pierce two holes in this tube in the same line, and solder to each a little addition proper to receive a cork. Finish the instrument by bending it in the manner indicated by [pl. 4], fig. 18.
Apparatus for Experiments on Running Liquids.—A tube bent once at a right angle, mounted with a funnel, pierced laterally, and soldered at the same point to a smaller tube. See [pl. 3], fig. 17.
Apparatus for Exhibiting the Phenomena of Capillary Tubes.—This apparatus consists of a capillary tube soldered to another tube of a more considerable diameter. Sometimes it is bent like the letter U. [Pl. 3], fig. 15.
Apparatus for the Preparation of Phosphuret of Lime.—An apparatus that can be employed for the preparation of phosphuret of lime, as well as in a variety of other chemical experiments, consists of a tube sealed at one extremity, slightly bent and choked at two inches and a half from the sealed part, and drawn out (after the introduction of the substances to be operated upon) at the other extremity. This little distillatory apparatus is represented by [pl. 3], fig. 29.