On the ventilation of lighthouse lamps, the points necessary to be observed, and the manner in which these have been, or may be attained / by Professor Faraday.

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On the ventilation of lighthouse lamps, the points necessary to be observed, and the manner in which these have been, or may be attained / by Professor Faraday. 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.