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James Hyatt Inhaling Chlorine Gas
Daguerreotype, image 6.9 x 5.6 cm, by Peter Welling, 1850–55
The Metropolitan Museum of Art, New York
 
The image of chemist James Hyatt was reproduced in his 1855 schoolchildren’s textbook The Elements of Chemistry to demonstrate the medicinal application of chlorine gas through a simple inhalation device, presenting scientific practice to young readers while placing chemical instruction within the wider culture of nineteenth century science education. Over a life spanning eighty seven years, Hyatt remained actively engaged with chemistry, botany, physics, geology, astronomy, and meteorology, frequently experimenting with other gasses and continuing to promote scientific study in its many forms until his death.