San Juan Record | 1937-03-18 | Page 7 | Purse from Sow's Ear

purse from sows bows ear A feature of the exhibit of arthur D little inc at the national exposition of chemical industries dus tries in 1921 was a silk purse pursa actually made out of a sows bows ear the ear was made into glue softened with water brought almost to the point of precipitation with acetone then forced through a warm container into a spinneret and through this into a hardening solution of formaldehyde and acetone in a V tube it was picked out of the V tube reeled dried treated to a 40 per cent glycerin bath in which it was also dyed then reeled and dried again woven and sewed up