CLAY WORKING INDUSTRIES. 93 



average clays in use in both the two stoneware districts fill this descrip- 

 tion well, with here and there a case which fails to some extent in one or 

 other of these points. 



The following table of analyses has been prepared with a view to 

 illustrating the chemical character of such clays as are in actual use and 

 are giving good results. 



One clay, however, was selected as being an undesirable one for use 

 as a stoneware clay, and its analysis very clearly shows the cause of this 

 failure to develop the proper quality. Also a few analyses which had 

 never been completed, and one which shows such a marked difference 

 from the other as to throw doubt on its accuracy, are included in a second 

 table. 



