Not wanting to be left without any means of propaganda, Rocker founded the "Germinal" in March 1900. Compared to "Arbeter Fraint", it was more theoretical, applying anarchist thought to the analysis of literature and philosophy. It represented a maturation of Rocker's thinking towards Kropotkin-ite anarchism and would survive until March 1903. 1902 saw the London Jews being targeted by a wave of anti-alien sentiment, while Rocker was away for a year in Leeds. Upon return in September, he was happy to see the Jewish anarchists had kept the "Arbeter Fraint" organization alive. A conference of all Jewish anarchists of the city on December 26 decided for a re-launch of the "Arbeter Fraint" newspaper as the organ of all Jewish anarchists in Great Britain and Paris and made Rocker the editor. The first issue appeared on March 20, 1903. Following the Kishinev pogrom in the Russian Empire, Rocker led a demonstration in solidarity with the victims, the largest ever gathering of Jews in London. Afterwards he traveled to Leeds, Glasgow, and Edinburgh to lecture on the topic.