426' Defer iptlon of ttuo Apparatuses for Diflllling 



ducing improvements into their procefs, and partly becaufe 

 many of tliem, from a ftrong propenfity to oppofe all inno- 

 vations, adhere to their old pra6tices without taking the 

 trouble to examine the advantage or difadvantage of the 

 improvements propofed *. 



If I am not millaken, this apparatus originated in Den-- 

 mark, where it has been employed with great fuccefs : 

 I have, however, ventured to introduce an improvement, 

 the advantage of which, I flatter myfelf, cannot be conteftcdv 

 That this apparatus is not without defefts, and confiderable 

 defetils, I will readily admit; and thefe I lliall explain, as 

 well as the advantages : but many of thcfe defcfts attend the 

 common apparatus now employed, and) in all probability, 

 mav be obviated by experience and attention. 



At the fame time I have made an application of this me- 

 thod to the apparatus employed for the firft and fecond rec- 

 tification of fpirit of wine. Dcmachy long ago propofed the 

 \vatcr-bath for the reftification of fpirit of wine; but, how- 

 ever convenient the apparatus propofed by him for this pur- 

 pofe, it is attended with confiderable expenfc, and the faving 

 of fuel, which is of fo much importance, has not been taken 

 mto Gonfideration. 



Fio;. I. (Plate VI.) reprefents the common apparatus for 

 diftilling. A is a large wooden velTel bound round with iron, 

 into which the liquid to be dilUlled is introduced, and which 

 may be of any fizc at pleafure. 



A hole is made in the bottom of the veflel which occu- 

 pies about a fourth part of its furfacc. In this opening, 

 which ferves as an air-hole, the furnace b is placed. This 

 furnace may be made with mod advantage of flrong copper, 

 as iron would be foon rufied by the furrounding fluid, and 

 therefore would not la ft half fo long as copper. This furnace 

 is in nottiing lliflVrent from a common wind-furnace, onlv 

 that tlie upper part of it, which in the former is open for 



• Tlic account we gave in a fonner Number of the improvements in- 

 SioJuccd by ilic Scotch diitillt;rs, proves that this remark is not apphcablc 

 to the whole trade : it is to be obferved, however, that the Scotch aimed 

 nt favihg time and excife duties, wliiie the intention of the apparatus dc- 

 icriV'sd in this paper is to five fuel. — Edit. 



