National Geographic : 1949 Jul
Appalachian Valley Pilgrimage National Geograplhic Photographer J. Baylor Roberts Technicians Test Streptomycin's Strength and Sterility at Elkton, Virginia A new antibiotic, streptomycin combats infections such as tularemia, septicemia, and certain types of tuber culosis. In 1946 it cost about $25 a gram. Now the wholesale price is down to 64 cents. At Merck & Company's plant, an operator (right) pipettes culture medium into dishes. Her companion makes sure it is distributed evenly.