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Credit
On the total annual heat received at each point of the Earth's surface from the Sun : and on the amount of the loss of that heat caused by radiation into space (neglecting the effect of the atmosphere) / by Samuel Haughton. Public Domain Mark. Source: Wellcome Collection.
Provider
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.