j?HYSIGAL AND LITER A]JY. u 



E X P E R. VII. 



Forty grains of a fmborh laminared 

 tnarle afforded eight grains of a clay re- 



Jlduum^ 



E X P E R, VIII. 



Thf. refidue of 4^ grains of a ftone- 

 tnarle weighed 12 grains, a third of 

 ^hieli was fandi 



E X P E R. IX. 



A drachm of another ftone niarie 

 gave only nine grains of unfoluble mat- 

 ter, moftly clay. 



E X P E R . X, 



The refidue of 40 grains of another 

 ftcne marie * weighed 1 6 grains, 1 3 of 

 which were fand. 



EXPER. 



* I have here given the name of marJe to fome fub- 

 ftances which perhaps, in iXt'xSt language, ought to go 



tinder 



