Eric Walker added Hans Christian Gram: The biologist who helped investigate bacteria | New Scientist to a number of topics

Eric Walker added a number of topics and a number of links to Microbes and microbiology, and added Microbes and microbiology to Biology

Eric Walker added a number of topics and a number of links to Gram-negative bacteria, and added Gram-negative bacteria to Bacteria and Gram staining

Eric Walker added Gram-negative bacteria and Gram-positive bacteria and Hans Christian Gram: The biologist who helped investigate bacteria | New Scientist to Gram staining, and added Gram staining to Microbes and microbiology

Eric Walker added a number of topics and a number of links to Gram-positive bacteria, and added Gram-positive bacteria to Bacteria and Gram staining