He passed on the idea to Whytlaw-Gray,
who set to work .... rarely led him astray, and his knack of getting the
right man in the right place...
first returned Ramsay
set him to investigate the use of magnesia
instead of bone ashfor the
manufacture of cupels, and as Ramsay said: 'The work led to the foundation of a small but useful industry the
manufacture of "MABOR" cupels for assaying.'
Information taken from:" http://www.chem.ucl.ac.uk/resources/history/people/gray.html"