A land without a people for a people without a land throw upon the Jews the actual manual labor of regeneration and prevent them from exploiting the "fellahin", whose numbers and lower wages are moreover a considerable obstacle to the proposed immigration from Poland and other suffering centers". In 1914 Chaim Weizmann, later president of the World Zionist Congress and the first president of the state of Israel said: "In its initial stage Zionism was conceived by its pioneers as a movement wholly depending on mechanical factors: there is a country which happens to be called Palestine, a country without a people, and, on the other hand, there exists the Jewish
Chaim Weizmann fermentation. He used the bacterium Clostridium acetobutylicum (the "Weizmann organism") to produce acetone. Acetone was used in the manufacture of cordite explosive propellants critical to the Allied war effort (see Royal Navy Cordite Factory, Holton Heath). Weizmann transferred the rights to the manufacture of acetone to the Commercial Solvents Corporation in exchange for royalties. First Lord of the Admiralty Winston Churchill became aware of the possible use of Weizmann's discovery in early 1915, and Minister of Munitions David Lloyd George joined Churchill in encouraging Weizmann's development of the process. Pilot plant development of laboratory procedures was completed in 1915 at