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I scanned and uploaded this book to the Internet Archive 600dpi colour for anyone interested: https://archive.org/details/applications-of-germicidal-erythemal-and-infrared-energy-by-matthew-luckiesh
I scanned and uploaded this book to the Internet Archive 600dpi colour for anyone interested: https://archive.org/details/applications-of-germicidal-erythemal-and-infrared-energy-by-matthew-luckiesh