According to Tate the Gadaras are now represented by Sidi half-castes - those Makrani " boys " who are so well known in the mercantile marine as stokers and firemen.
In some English works coal is still employed for direct heating with various forms of mechanical stokers.
These are fitted with Green's economizers and Meldrum's mechanical stokers.
They sailed after a couple of days. " Our three African stokers looked more like Red Indians!
I quickly remedied this point, informing him of the whereabouts of other stokers.