Fritz Haber
Death

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. Repeated angina attacks can cause lasting damage which likely contributed to his death the next year.

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 Hartley, Sir William Jackson Pope and Frederick G. Donnan arranged for Haber to be officially invited to Cambridge, England. There, with his assistant Joseph Joshua Weiss, Haber lived and worked for a few months. Scientists such as Ernest Rutherford were less forgiving of Haber's involvement in poison gas warfare: Rutherford pointedly refused to shake hands with him.

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. 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.

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".
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