Set of six slides includes: Staphylococcus aureus, pus organism, smear from culture, Bacteria from mouth, ideal for demonstrating Gram positive and negative bacteria, Streptococcus lactis, milk souring organism, smear from culture showing short chains, Escherichia coli, colon bacteria, smear, Spirillum volutans, a very large spirillum, smear, Bacillus subtilis, hay bacillus, smear showing bacilli and spores doubly stained
