tVAPORATION OF SALT WATERS. 49 



The heated drying rooms are ufelefs when the humidity of Bavarian me- 

 Ihfe fait arifes from the muriate of lime it contains, rating fair^°* 



Waters. 

 Explanation of the Plates IIJ, and IV. 



Fig, 1 . Plan of the pans. 

 No, 1. Small pan. 

 No. 2. Graduating pan. 

 No. 3. Preparing pan. * 



No. 4* Cryftalli^ing pan. 



The difpofition of the plates of iron Which compofe thefe 

 pans, is (hewn in No. 2. 



a, a. Elevation on which the fait is placed to drain, as it is 

 taken from the cryftallizing pans. 



b, b, b. Wooden partitions which feparate the chambers. 



c, c, c, A raifed wooden ledge which furrounds the pans. 

 Fig. 2» Section of the evaporating chamber which contains 



the pans I and 2* 



d, d, d. Heat tubes which give heat to the fmall pan, and 

 contribute to heat the others. 



€t e, e. Fire place for tlie pans. 



i, i, i. Pillars of caft iron under the gratings g, g, g, which 

 fupport the bottom of the pans. 



A, Wooden chamber which contains the two pans. 



k. Opening by which the vapours efcape. 



Fig, 3. Section of the evaporating chamber which contains 

 the pans 3 and 4. 



a. Elevation on which the fait from the cryftallizing pans is 

 placed to drain. 



The other letters indicate the fame parts as in the preceding 

 figures. 



Fig. 4. Method in which the plates of iron are joined to 

 form the pans. 



«. The iron plate. 



b. The iron gutter which receives the edges of the plates, 

 and is ftrongly faftened with fcrews. 



a, i. Pillars of call iron which fupport the bottom of the 

 pan. 



Vol. Xr.-.1805* E Later 



