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Astrolabe
Artist Unknown
ca. 1550
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When bloodletting is done at the right time, and when there is need for it, it promotes the health of the person, as I shall write about, God willing. When bloodletting is…
[ . . . ] Since, therefore, Thou hast favored me with kindness and hast crowned me with honor and glory and Thou hast made me worthy of knowing a bit of the science of medicine, therefore I wish to…