Scientific explorers opened vast new horizons for Pharmacy late in the 19th century. Sent in 1885 to Peru, Dr. Henry H. Rusby crossed South America amid incredible hardships. He returned with 45,000 botanical specimens, including Cocillana Bark.
33 — Wresting the Jungle’s Secrets
The Hanneman Archive 
Are these prints worth anything?
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It’s hard to say. Occasionally you will find a complete set on eBay. I spoke to the Institute for the History of Pharmacy at the University of Wisconsin, but as I recall they had their own set. I know if they were professionally framed they would make an impressive museum display!
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