“…Because differences in areas ofthe fabrics are reveated by the photography and these differences are not obvious in ordinary viewing conditions, the photographs can be used to indicate locations for future sampling from the textile so that samples may be representative of areas with chemical difference. Baldia, Jakes, and Baldia (2008) provide results ofthe photography and subsequent opticat microscopy of particutate material from selected Seip textiles. Techniques of optical microscopy, conducted using a Zeiss Axioptan Research microscope, include brightfield, darkfietd, potarized tight, and differential interference contrast techniques.…”