Textile calculations : being a guide to calculations relating to the construction of all kinds of yarns and fabrics, the analysis of cloth, speed, power and belt calculations : for the use of students, operatives, overseers and manufacturers (1896)
Posselt, E. A. (Emanuel Anthony), 1858-1921 · Philadelphia : E.A. Posselt · leaf 99
ilk fibres as appearing under the microscope are given in the accompanying illustration. Fig. 53. Wild Silk. — The most important of these is Tussah. Its natural color is a silver drab, which requires bleaching of the fibres for bright colors. The accompanying illustration, Fig, 54, shows its… … Fig. 55. croscope. The amount of scales found per square inch varies with reference to quality— the finer grades having more, and the coarser less. If these scales can not be readily seen treat the fibres in question with ammoniac copper^ and the scales will become distinctly visible to the eye…
Textile fabrics
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
