]]> US 2421761 A]]> JPEG derived from master file, which was scanned from the original book in 24-bit color at 600 dpi in TIFF format using an Epson Expression 10000XL scanner.]]> Scottish Studies Collection, Archival & Special Collections, University of Guelph Library, Guelph, Ontario Canada]]> JPEG derived from master file, which was scanned from the original book in 24-bit color at 600 dpi in TIFF format using an Epson Expression 10000XL scanner.]]> JPEG derived from master file, which was scanned from the original book in 24-bit color at 600 dpi in TIFF format using an Epson Expression 10000XL scanner]]>