title: AN OPTICAL METHOD FOR THE ANALYSIS OF PERIODICITIES IN ELECTRON MICROGRAPHS, AND SOME OBSERVATIONS ON THE MECHANISM OF NEGATIVE STAINING.
mesh_terms: D002374:Catalase; D004396:Coloring Agents; D003461:Crystallography; D004583:Electrons; D008853:Microscopy; D008854:Microscopy, Electron; D009124:Muscle Proteins; D016624:Negative Staining; D055095:Optics and Photonics; D010784:Photomicrography; D012106:Research; D013194:Staining and Labeling; D014027:Tobacco Mosaic Virus
chemical_list: D004396:Coloring Agents; D009124:Muscle Proteins; D002374:Catalase
keywords: CATALASE; CRYSTALLOGRAPHY; EXPERIMENTAL LAB STUDY; MICROSCOPY, ELECTRON; MUSCLE PROTEINS; OPTICS; PHOTOMICROGRAPHY; STAINS AND STAINING; TOBACCO MOSAIC VIRUS