Tag Archives: chemistry

Kathleen (Yardley) Lonsdale DSc., FR

JMS Pearce Hull, England   Fig 1. Dame Kathleen Lonsdale (née Yardley) by Elliott & Fry. 1996. National Portrait gallery. CC BY-NC-ND 3.0 Kathleen Lonsdale (1903-1971) (Fig 1) like her contemporary Dorothy Hodgkin was one of the women pioneers in a man’s world of professional scientists.1 She developed original techniques in X-ray diffraction of crystals […]

Dorothy Crowfoot Hodgkin OM, FRS (1910-1994)

JMS Pearce Hull, England   Fig 1: Dorothy Hodgkin. by Godfrey Argent. National Portrait Gallery, London. CC BY-NC-ND 3.0. Dorothy Hodgkin (Fig 1), though not by religion, had close Quaker affinities through her marriage and through her spirited pacifism. She possessed a unique mixture of scientific skills that allowed her to extend the use of […]

Novalis: the white plague and the blue flower

Nicolas Roberto Robles  Badajoz, Spain   Figure 1. Bust of Novalis at Nikolaifriedhof (Weiβenfels). Photo by Doris Antony. CC-BY-SA-2.5. Novalis was the pseudonym and pen name of Georg Philipp Friedrich Freiherr1 von Hardenberg, a poet, author, mystic, and philosopher of early German Romanticism. Young Hardenberg adopted the pen name “Novalis” from his twelfth-century ancestors who […]

Darling of Panama

Enrique Chaves-Carballo Kansas City, Kansas, United States   Samuel Taylor Darling at age 51, portrait by Underwwod & Underwood, 1923. Credit: Wellcome Collection. Attribution 4.0 International (CC BY 4.0) Samuel Taylor Darling, widely considered as the foremost American tropical parasitologist and pathologist of his time, was born in Harrison, New Jersey on April 6, 1872. […]

A wider science

Ahmad Shakeri Howsikan Kugathasan Toronto, Ontario, Canada   Storytelling helps healthcare workers learn about the person, not just the patient. Once Upon a Time, by George Hodan. Source Working at a Toronto harm reduction clinic helped reconcile my different points of view on drug addiction. In the classroom, I was a progressive-minded graduate student willing to […]

Irvine H. Page M.D. 1901-1991

Earl Smith Chicago, Illinois, United States   Dr. Irvine Page and a lab tech at Cleveland Clinic in the 1960s. 1960s. Provided by Cleveland Clinic. Accessed via Wikimedia Commons. CC BY 4.0 Irvine Page was a physician scientist who discovered angiotensin and serotonin and proposed the multifactorial etiology of hypertension. He was a prolific medical […]

Blood and pernicious anemia

Omar Alzarkali Batavia, New York, United States   Page from Diagnostic methods, chemical, bacteriological and microscopical, a text-book for students and practitioners by Ralph Waldo Webster. 1914. Accessed via the Internet Archive. Contributed by Gerstein – University of Toronto. Blood is powerful. The mere sight of it can cause an adult to fall to the […]

Litmus paper and other pH indicators

To many a physician the word litmus brings back unpleasant memories from medical school, something to do with Bunsen burners, incomprehensible lectures on acid-base balance, or experiments going wrong and exploding in the chemistry lab. Litmus itself is a mixture of organic substances obtained from lichens and used as an acid-base indicator—even in nature, such […]

Bosch’s Stone Operation: meaning, medicine, and morality

Laurinda Dixon New York, USA   Figure 1: Hieronymus Bosch, Cure of Folly (Stone Operation), ca. 1488 or later, oil on panel, Museo Nacional del Prado, Madrid. The Stone Operation (fig. 1) (ca. 1488 or later), also known as The Cure of Folly, by the Dutch fifteenth-century painter Hieronymus Bosch (ca. 1450-1516), is, like all […]