MacConkey Agar for Microbiology Experiments, 100g Chemical_Barium Chloride the bulky triangular geometry handling

the bulky triangular geometry handling wider beams for total internal reflection

sized for short-run student wiring of buzzers

Ceramic center on each 6 x 6-inch iron wire gauze square spreads Bunsen flame heat beneath beakers and flasks

the optically true beveled surface fitting rotational and lens-based optics demos

reproductive organs

MacConkey Agar for Microbiology Experiments, 100g Chemical_Barium Chloride the bulky triangular geometry handlingUsed to isolate Gram negative bacteria and differentiate lactose fermenters (pink colonies) from non fermenters (colorless), this 100g of MacConkey agar makes 2L of selective culture medium.