This was he said , for use in a new secret process , but was in fact used to provide some evidence of mined ore .
Aspinall had also purchased locally galena concentrates for which he would pay 50 % above the ordinary market price .
This was Aspinall said , for use in a new secret process , but was in fact used to provide some evidence of mined ore .
Aspinall had also purchased locally galena concentrates for which he would pay 50 % above the ordinary market price .