Glass prepared microscope slides, supplied in a plastic case. A collection of slides specific to the study of bacteria. Set of 12. 1）Mixed bacteria, bacilli, cocci and spirillium 2）Mycobacterium tuberculosis, in tissue 3）Cocci, Gram positive and negative 4）Rhizobium, in root nodule 5）Bacilli, Gram positive and negative, 6）Vibrio 7）Escherichia coil, 8）Spirillu, 9）Bacillus subtilis 10）Staphylococcus epidermidis, 11）Bacillus megaterium 12）Streptococcus lactis