Show Making SOWS SOW'S EAR Into SILK SILK- PURSE old ages-old challenge that you cannot THAT make a silk purse out of a a. sows sow's ear at last has been met by century science Evidence Evi Evi- Evidence dence of this this fact fact was shown at the recent Chemistry Chemistry Chem Chem- Exposition in New York city at which Arthur Arthur Ar Ar- thur D D. D Little a chemist of Cambridge Mass exhibited such a a. a purse The announcement of the successful result of experiments contains the explanation that the silk is not very strong and that there is no pres- pres pres pres- strand This becomes a firm filament of silk when it coagulates on reaching the air Analysis of this vis viscous ous liquid showed it to belike be belike like glue and with somewhat similar chemical properties The sows sow's ear being chiefly gristle r rand and skin in also has the natural elements of glue This was obtained from the ears and it was vas put through several processes of preparation filtered under pressure and placed in spinning apparatus of a special design The solution of glue and chemicals came out as 16 very fine colorless streams ms joined into one 11 t ft t To Make a Silk Purse Out of a Sows Sow's Ear Science First Analyzed the SilkWorms Silkworms Silkworm's Silkworms Silkworm's Silk Silk- worms worm's Method of Making Silk and and Then Copied Its Caterpillar Chemistry in the Lab Laboratory ent eat industrial industria value in the process involved It is more ore or or- orless less the product of chemistry at play but a contribution also to I e philosophy in proving the fallacy of the old proverb In In describing how a sows sow's ear from the stockyards was transformed into a silk purse such as a woman might carry the chemist explained that the first step was to analyze the silkworms silkworm's od of making silk This done its caterpillar chemistry was copied in the laboratory It was found that man maj had to provide a substitute substitute substitute sub sub- for a process by which the silkworm exudes exudes exudes ex ex- udes from two fine ducts in its head minute threads of a viscous liquid co coated ted with another another- secretion which are cemented into a a double 4 r j y 1 j. j C r l composite fibre treated to give it strength and color and processed yet again to obtain the desired desired desired de de- sired soft silky fc feel l. l The we weaving ving foll followed wed or ora on ona k ka a small hand loom the fabric was fabric was formed and thus thus a n silk purse w was was s made mada from front a 1 sows sow's ear car i i L'- L' i f JS V |