1868 The complete Practical Distiller

PREVENTION OF INEQUALITY OF HEAT.

61

in every part of the apparatus which they may fill ; the condensation is more rapid^ and the products, upon the whole, greatly superior. To render this instrument still more useful, its lower part should be completely immersed in a vessel filled with cold water up to the ball ; the liquor, though ever so little impregnated in traversing this cold fluid, will com- plete the deposition of its caloric. This precaution will also prevent the losses that fre- quently result from the negligence of the workman.

Fig. 12.

Explanation of the Cut. — A B c B, a tube of copper or glass, in several pieces, bent over, with a ball ii eight inches in diameter. The upper end of the tube A may be attached to the worm by means of a vice. 6 The length