From the attached press release: "Dr. Sidney Katz, senior chemist at Armour Research Foundation of Illinois Institute of Technology, records data from the "Aerosoloscope," an electronic instrument... Show moreFrom the attached press release: "Dr. Sidney Katz, senior chemist at Armour Research Foundation of Illinois Institute of Technology, records data from the "Aerosoloscope," an electronic instrument he helped develop. The device, which measures and counts airborne particles, may be the forerunner of a detector against biological warfare." Photographer unknown. Date of photograph unknown. Date listed is approximate. Show less
