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(Incidentally, both Sauvages and Linnaeus appear to have been acting on a suggestion of the great English physician Thomas Sydenham, who wrote that...
This is Angelo Mosso's sphygmomanometer, an early device for measuring blood pressure. The patient inserted their fingers into the tubes (marked 'E') which were filled with water - both diastolic and systolic pressures (and a pulse wave) were recorded on the black cylinder.
One day he discovered that a monkey had eaten the strings from his lute. History does not record whether the monkey had been playing the lute before doing so.
And the final ghost in my selection is a bony hand saying NO TO TRICK OR TREATERS.
Ghost no. 1. Stare at this image while counting to twenty. Then transfer your gaze to the ceiling, to a blank wall or a piece of paper. What do you see?
SPOOKY.
A man coughs up a tobacco pipe - more than two years after his friend accidentally stabbed him in the eye with it - a jaw-dropping case from 1770: https://t.co/forkwtA4Dk
A Philadelphia doctor's unusual case: a lion-tamer admitted to his hospital after a tangle with a big cat in 1872: https://t.co/8ADz5nGWkZ
There are cases in which patients were said to have died of fright at the prospect of a bladder-stone operation.