· OSWALD T. AVERY, COLIN M. MACLEOD, AND MACINN MCCARTY 139 1. Nutrient Broth.—Beef heart...
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· OSWALD T. AVERY, COLIN M. MACLEOD, AND MACINN MCCARTY 139 1. Nutrient Broth.—Beef heart infusion broth containing 1 per cent neopeptone with no added dextrose and adjusted to