The head of the chemistry institute, Emil Fischer, placed a former woodworking shop (Holzwerkstatt) at Hahn's disposal in the basement to use as a laboratory. Hahn equipped it with electroscopes to measure alpha and beta particles and gamma rays. It was not possible to conduct research in the wood shop, but Alfred Stock, the head of the inorganic chemistry department, let Hahn use a space in one of his two private laboratories. Like Meitner, Hahn was unpaid, and lived off an allowance from his father, although somewhat larger than hers. He completed his habilitation in early 1907, and became a Privatdozent. Most of the organic chemists at the chemistry institute did not regard Hahn's work—detecting minute traces of isotopes too small to see, weigh or smell through their radioactivity—as real chemistry. One department head remarked that "it is incredible what one gets to be a Privatdozent these days!"