Letter from Richard Willstatter to Michael Heidelberger
In this letter Heidelberger's former mentor, the organic chemist and Nobel Laureate Richard Willstatter, acknowledged
initial doubts regarding Heidelberger's and Oswald Avery's findings in 1923 and 1924 that powerful antigens of type-specific
pneumococcus bacteria are polysaccharides. Willstatter had instead thought that "adsorbed traces of a highly reactive
unknown substance" might determine the bacteria's pathogenicity. Since then, however, he admitted that it had become
clearer that Heidelberger's work "created a great new advance in the field and that you have prevailed completely."
Item is handwritten.
Number of Image Pages:
1 (32,786 Bytes)
1932-10-25 (October 25, 1932)
Courtesy of Michael Heidelberger.
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