A TREATISE ON THE CONNECTION OF 



SULPHATOF POTASH, OR VITRIOL ATED TARTAR. 



THIS salt is soluble in fifteen times its weight of 

 cold water, and has been found by Dr. HOME to promote 

 vegetation in an extraordinary manner. The garden 

 mould on which his experiments were made produced 

 an increase of one-fourth more grain, in consequence of 

 the application of this salt. Vitriolated tartar is to be 

 had from most vegetable matters by combustion ; it 

 forms at least one-third of the saline matter obtained by 

 the lixiviation of their ashes. This is sufficient, a prior jy. 

 to prove, (independently of Dr. HOME'S very satisfac- 

 tory experiments) that vitriolated tartar is beneficial to 

 vegetation. This substance is a. refuse article in some 

 branches of manufacture but the quantity produced is 

 a mere trifle, in comparison to the quantity that might 

 advantageously be applied to the purposes of Agri- 

 culture. 



SULPHAT 



