Editing Fritz Haber (section)

==Death==
[[File:Habers in Basel.JPG|thumb|The grave of Fritz and Clara Haber (née Immerwahr) in the Hörnli graveyard of Basel, Switzerland]]
Haber left Dahlem in August 1933, staying briefly in Paris, Spain, and Switzerland. He was in extremely poor health during these travels. Haber specifically suffered attacks from [[angina]].<ref>{{Cite journal |last=Witschi |first=H. |date=1 May 2000 |title=Fritz Haber: 1868–1934 |journal=Toxicological Sciences |volume=55 |issue=1 |pages=1–2 |doi=10.1093/toxsci/55.1.1|pmid=10788553 |doi-access=free }}</ref> Repeated angina attacks can cause lasting damage which likely contributed to his death the next year.<ref name=Stoltzenberg />{{rp|288}}

In the meantime, some of the scientists who had been Haber's counterparts and competitors in England during World War I now helped him and others to leave Germany. Brigadier [[Harold B. Hartley|Harold Hartley]], Sir [[William Jackson Pope]] and [[Frederick G. Donnan]] arranged for Haber to be officially invited to [[Cambridge]], England.<ref name=Stoltzenberg />{{rp|287–288}} There, with his assistant [[Joseph Joshua Weiss]], Haber lived and worked for a few months.<ref name=Stoltzenberg />{{rp|288}} Scientists such as [[Ernest Rutherford]] were less forgiving of Haber's involvement in poison gas warfare: Rutherford pointedly refused to shake hands with him.<ref name=Rutherford>{{cite web|title=Remembering Controversial Chemist Fritz Haber|url=http://www.thechemicalblog.co.uk/remembering-controversial-chemist-fritz-haber/|website=The Chemical Blog|access-date=23 January 2017|url-status=dead |archive-url=https://web.archive.org/web/20141016070848/http://www.thechemicalblog.co.uk/remembering-controversial-chemist-fritz-haber/|archive-date=16 October 2014}}</ref>

In 1933, during Haber's brief sojourn in England, [[Chaim Weizmann]] offered him the directorship at the Sieff Research Institute (now the [[Weizmann Institute]]) in [[Rehovot]], in [[Mandatory Palestine]]. He accepted, and left for the Middle East in January 1934, travelling with his half-sister, Else Haber Freyhahn.<ref name=Stoltzenberg />{{rp|209, 288–289}} His ill health overpowered him and on 29 January 1934, at the age of 65, he died of heart failure, mid-journey, in a [[Basel]] hotel.<ref name=Stoltzenberg />{{rp|299–300}}

Following Haber's wishes, Haber and Clara's son Hermann arranged for Haber to be cremated and buried in Basel's Hörnli Cemetery on 29 September 1934, and for Clara's remains to be removed from Dahlem and re-interred with him on 27 January 1937 (see picture). Albert Einstein, his longtime friend, eulogized Haber with the following words: "Haber's life was the tragedy of the German Jew – the tragedy of unrequited love".<ref name=Stoltzenberg /><ref>A photograph of their gravestone in Hörnli Cemetery, Basel can also be found in the book written by Stoltzenberg.</ref><ref>{{Citation |last1=Friedrich |first1=Bretislav |title=Clara Immerwahr: A Life in the Shadow of Fritz Haber |date=2017 |work=One Hundred Years of Chemical Warfare: Research, Deployment, Consequences |pages=45–67 |editor-last=Friedrich |editor-first=Bretislav |place=Cham |publisher=Springer International Publishing |language=en |doi=10.1007/978-3-319-51664-6_4 |isbn=978-3-319-51663-9 |last2=Hoffmann |first2=Dieter |s2cid=159561319 |editor2-last=Hoffmann |editor2-first=Dieter |editor3-last=Renn |editor3-first=Jürgen |editor4-last=Schmaltz |editor4-first=Florian|doi-access=free |hdl=11858/00-001M-0000-002D-7FF9-2 |hdl-access=free }}</ref>