Oxford Dictionary of National Biography
David Zuck, Jeffreys, Julius (18001877), first published Sept 2004, 1510 words
http://dx.doi.org/10.1093/ref:odnb/14706
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The Oxford Biography Index is an authoritative and accurate index of notable people – their names, their dates, and their fields of activity. |
Oxford Biography Index entry Julius JeffreysJeffreys, Julius (18001877), surgeon and inventor of the respirator
Oxford Biography Index Number 101014706 [what is this?] Full text available
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