3 3t PROCESS FOR, &c. 



wafli the refidue with liot water. At lengt.fr/ 

 when the clay, the lime, and the fund are all ful- 

 ly dry, weigh them fcparately, that their propor- 

 tions in the mafs may be afcertained. The land 

 may be examined with the mierofcope, in order 

 to dillimjuifh whether it contain any filiccoiia 

 matter, feint illating fpar, &-c. 



After making the allay, it will be eafy to dif- 

 tingiiifli the pecular nature and the competition? 

 of the clay; whether an addition of fund be rc- 

 qiiifitcto render it a Jit inatcikil for bricks; what. 

 kind of fund it may be proper to add; and by 

 what indications we are to know whether tbo 

 bricks be thoroughly burnt. 



