title: Documents of antibiotic assays.
abstract: A new technique is described, in which a copy machine (Rank-Xerox) is used for instantaneous reproduction of biological assays.
mesh_terms: D000900:Anti-Bacterial Agents; D001681:Biological Assay; D002855:Chromatography, Thin Layer; D004396:Coloring Agents; D004282:Documentation; D008722:Methods; D010781:Photography; D012505:Sarcina
chemical_list: D000900:Anti-Bacterial Agents; D004396:Coloring Agents