Alan,
I'm not sure whether this will go to you or to the list. I would be interested in details of the development of the Swan lamp, but I don't have your email address.
Mike
Mike Worsfold
Shropshire Mines Trust
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Ian mentioned the work of Joseph Swan (later Sir Joseph Swan) in producing
his electric lantern for coal mine use and its use underground.
I have information on the development of the lamp and its use underground
but I suspest that this may be rather long to circulate as a list message.
If anyone wishes to have this information please contact me 'off list' and I
will send it as an attachment.
Alan.
