AGRICULTURE WITH CHEMISTRY. 121 



proper, when mixed in moderate quantities, to promote 

 the dissolution and complete putrefaction of the dung. 

 This process would be greatly accelerated by the further 

 addition of a due proportion of the vitriolic neutral 

 salts. 



Methods of manufacturing, at a cheap rate, the most 

 efficacious of these salts, have been discovered, and 

 farmers will soon be enabled to make the necessary ex- 

 periments, and to satisfy themselves that such salts pos- 

 sess the powers ascribed to them. The price will be re- 

 gulated by the duty that may be charged on sea salt, and 

 on the bitter refuse liquor of the salt works, whence 

 these articles are to be made. 



But as it may happen, that much time may elapse be- 

 fore any relief is granted, or any alteration made in the 

 present salt laws, it becomes important to consider how 

 a supply of salt, or what is still more valuable, how a 

 supply of sea or salt \vater may be obtained for the use 

 of cattle, and the purposes of agriculture, without being 

 subjected to the present duties. Previous to this expla- 



0_ nation, 



