Uses of Chlorides and Chlorine. • 131 



ed or destroyed by these and other unwholesome effluvia, much 

 sooner than if their apartments are seasoned by the corrective influ- 

 ence of chlorine. The gas, however, must be very gently and slow- 

 ly liberated, or its effects will be too powerfid. The method recom- 

 mended is to place in a dish or vessel one part of chloride of lime 

 and about- thirty parts of water, or an ounce of chloride with a quart 

 of water, with such a quantity of worms as will issue from an ounce 

 of grains, (eggs.) Stir the materials, and when precipitated, renew 

 the water, and repeat the operation two or three times in twenty four 

 hours, as necessity requires. The chloride is to be changed only- as 

 it ceases to yield an odor. 



In this operation it appears that the carbonic acid arising from the 

 fermenting materials, unites with the lime, and sets the chlorine free, 

 which by its avidity for hydrogen, decomposes the miasms which it 

 meets with. 



This mode of fumigation does not remove the necessity of fre- 

 quently renewing the air of the chambers, and of promoting its cur- 

 rents by fires. 



5. In removing from icrine and the vessels employed to receive it, 

 ihe disagreeable odor emitted from them. 



It is well known that the odor of urine, (which is at first aromatic, 

 and often partakes of the smell of the food, especially after eating as- 

 paragus, cauliflowers, peas, &tc.) becomes exceedingly repulsive and 

 communicates its eifects to the vessels employed with it. 



These odors are completely removed by a small portion of chlo- 

 rine. Thus, half a gallon of urine which would not lose all its odor 

 by being treated with four ounces of acetic acid, would yield it by 

 the addition of six, eight, or at most ten drops of chlorine or chloride 

 of lime. 



If night tables and other utensils of a room which may have ab- 

 sorbed the odor of urine contained in chamber vessels be washed 

 with a sponge dipped in a solution, prepared by adding an ounce of 

 chloride of lime to a gallon of water, they will be preserved from 

 taint. 



G. In destroying ihe gases which blacken silver and bronze vessels, 

 and varnish containing metallic oxides. It has happened that in 

 emptying privies and in other analogous operations, the effluvium has 

 produced disagreeable efl'ects on furniture and metallic surfaces. 

 This may be completely prevented by suspending cloths soaked in a 

 solution of chloride in the apartment, or placing them in the apertures 

 through which the gas issues. 



