The SciencesThe Amateur and His Microscope--IXExamining Milk for BacteriaBy John F. Brandt on March 1, 1934AdvertisementABOUT THE AUTHOR(S)Recent Articles by John F. BrandtThe Amateur and His Microscope--XII Some Tricks of the TradeThe Amateur And His Microscope—X Mounting SpecimensThe Amateur and his Microscope—IV Use and Care of the Instrument