title: XXI. A binocular magnifier for the electron-microscope, for critical viewing and focusing of finest structures (bacteriophage of B. coli).
authors.forename: K B
authors.initials: KB
authors.lastname: MERLING
mesh_terms: D001435:Bacteriophages; D004583:Electrons; D008853:Microscopy; D008854:Microscopy, Electron
keywords: MICROSCOPY, ELECTRON