Catgut down to the desired diameter using a centerless grinder. After drying and polishing, workers bleach and disinfect the strings using sulfur dioxide, dye them if necessary, and sort them into sizes. Catgut sutures are normally treated with a chromium salt solution to resist body enzymes, to slow the absorption process, and are called catgut chromic sutures—whereas untreated catgut sutures are called catgut plain sutures. Catgut Catgut is a type of cord that is prepared from the natural fibre found in the walls of animal intestines. Catgut makers usually use sheep or goat intestines, but occasionally use the intestines of cattle,
Musical instrument the violin, viola, baryton, and various lutes dominated popular music. Beginning in around 1750, however, the lute disappeared from musical compositions in favor of the rising popularity of the guitar. As the prevalence of string orchestras rose, wind instruments such as the flute, oboe, and bassoon were readmitted to counteract the monotony of hearing only strings. In the mid-seventeenth century, what was known as a hunter's horn underwent transformation into an "art instrument" consisting of a lengthened tube, a narrower bore, a wider bell, and much wider range. The details of this transformation are unclear, but the modern horn or,