Tag Archives: Christopher Columbus

Guaiac and “the old Guaiacum test”

James L. Franklin Chicago, Illinois, United States   Guaiacum officinale. Photo by Forest and Kim Starr. July 27, 2007. Via Wikimedia. CC BY 3.0. “The old Guaiacum test was very clumsy and uncertain.” — A Study in Scarlet, Arthur Conan Doyle, 1887   So declares Mr. Sherlock Holmes in Arthur Conan Doyle’s novel A Study […]

The men who defeated syphilis

German zoologist Fritz Schaudinn. Source Fritz Schaudinns, Verlag Leopold Voss, Hamburg und Leipzig 1911. Via Wikimedia. Beginnings The origins of syphilis have been subject to much debate. The disease has been claimed to be thousands of years old and originally to have evolved from yaws. Generally mistaken for leprosy and not recognized as a separate entity, […]