Report of the illuminating power and chemical quality of the gas supplied to the City of London during the autumn quarter of 1866 / by Dr. Letheby.

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Report of the illuminating power and chemical quality of the gas supplied to the City of London during the autumn quarter of 1866 / by Dr. Letheby. Public Domain Mark. Source: Wellcome Collection.

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This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.