
          it is moulded in a hollow cylinder of [sheat?]
iron and heated in this and I think a rod of
iron should be placed in the axis of the
cylinder to preserve the interior in the
proper shape while baking although nothing
in said about this in the directions The
cylinder being formed it is placed an a glass
or other vessel and around it a cylinder
of Tin Within the coak cylinder strong
nitric acid as poured and on the outside
of the same and in contact with the Zinc 
a solution of sulphuric acid The Zinc
forms one element and the coak the other
also Electricty is generated by the action
of the two acids which in the [?]
of the coak come in contact with each
other Several of these arrangements
being united to each other by joining the
negative element of the other by strips of copper The 
whole is complete I should have mentioned

[left margin]
I found a sad loss in the rooms of the society on account of the
absence of an old Friend Mr [Vanigham?] [George Ord?] and has been
        