PAGE TWO UNIVERSITY DAILY KANSAN, LAWRENCE, KANSAS MONDAY, APRIL 5. New Sociology Course Gives Students Insight Into Human Relationships Social Service To The Individual, a course offered by the sociology department, teaches students how to understand and work with other people. Originally planned for social work majors, it also has attracted those interested in sociology, psychology, and personnel administration. The course runs for two semesters with $ \textcircled{9} $ Class work largely consists of studying case histories, most of which are supplied by social work agencies throughout the country. Personality situation, and working adjustment difficulties are typical problems studied. Studies Of Human Problems The students first analyze the problem and its cause, then seek to remedy the situation. Study Of Human Problems Optional laboratory projects offer an additional two hours credit each semester. For extra credit, students are placed with such agencies as the local employment service, the boys industrial school in Topeka, juvenile courts, speech clinics, and the county welfare department. As a project last semester, students visited the boys industrial school one afternoon a week. They had the responsibility of planning afternoon recreation for the school. Under this program, games such as baseball, enemy-battleship, and cat-and-mouse were played in the early afternoon. Later in the day, games such as cheekers were played. The students became acquainted with the various understanding of their problems. Others Visited Juvenile Courts Students working in juvenile courts were also given a chance to acquaint themselves with problem children. One student interviewed boys brought to juvenile court and in a few instances talked with their parents. Other laboratory projects deal with adults. Some students study employment services agencies and clinics. They frequently observe interviews to gain a better understanding of the duties and responsibilities of an interviewer. Washington Designs Prize-Winning Silver Martina Washington of Lawrence, graduate student at the University in the fall semester, won the $25 first prize in a silverware design contest sponsored exclusively for University students by the International Silver company. Virginia Parry, fine arts sophomore from Augusta, won the $15 second prize—Austin Harmon, fine arts senior from Lawrence, won the third place $10 prize. Emphasis in the contest was on pattern and on obtaining a better balance in weight and dimensions between the blade and handle of the silverware. Judging was done in Meriden, Conn. This is the second year the company has set up a contest for University students. K. U. is the only school to have such a competition said Miss Marjorie Whitney, professor of design. It Cost Her A Cool $1,000 But She Hed One Less Car Goshen, Ind.,—(UP)—Mrs. Laura Stengel finally had to turn the remnants of her 1929 model auto over to a junk yard. She told police her flivert started sputtering, died on a highway and was slammed in the rear by a brand-new Plymouth sedan. It will cost close to $1,000 to have the new car repaired. But there was nothing to do for the old one but pick up the pieces. SAM To Go On Field Trip Members of the Society for the Advancement of Management will make a field trip to the Midwest Research institute, Kansas City, Mo. Wednesday and Thursday. The group will leave from the back of Marvin hall at 12:20 both days. Call KU 376 with your Want Ads University Daily Kansan Son Pays $140 Bill To Retired Grocers Mall subscription: $3 a semester, $450 a year, (in Lawrence add $1.00 a semester postage). Published in Lawrence, Kan., every afternoon during the University year except Sundays and examinations. Four-day examination periods Entered as second class matter Sept. 17, 1910, at the Post Office at Lawrence, Kan., under act of March 3, 1879. Ponca, City—(UP)—C. S. Bush and L. C. Hard, pioneer grocers, ended their partnership here 12 years ago, but they're still receiving checks for back bills. They were good to their customers. A 35-year-old grocery bill amounting to $140 has just been paid by the son of a family which had been helped by the two grocers in days when the family was having a hard time financially. "Mr. Harsh and Mr. Bush helped mother out, so I figure it was a proper bill," the son said. Read the Daily Kansan daily. The students of the life drawing class in the School of Fine Arts were crowded around the class room door Wednesday. The following poem was responsible for the attention of the crowd: Poem Draws Crowd To Art Room Door Do not feel slighted. To come down to see the good dean If your grades have been stinking We have all been thinking You better go down see the dean. When asked whether the poem should be signed, Raymond Eastwood, professor of drawing and painting, laughed and said "Just sign it Shakespeare or Poorlow." Beverly Hills, Calif.—(UP)American women's fussy, good housekeing complex is driving their husbands mad, Mason Rose, a psychologist recently. 'Mrs. America Is Knick-Knack Mad' Most females are in a constant, frantic search for knick-knacks overdecorate their homes, said Mr. Rose. The men-of-the-house, warned, can't take it any longer. Neither can the kids. The modern child's room with trick bears and nursery characters marching around the walls over stimulates the youngster, he added. Just A Helpful Hint offspring. "Decorators," he said, should o tate to their clients what they sho have, and not give them what t want." Mr. Rose, head of the national foundation for psychological research, told 300 members of the American institute of (interior) decorators that it's up to them to save the sanity of Mr. America and his Minneapolis—(UP)—A night patrolman was testing doors in the business district and found one open. Entering, he noticed a suggestion box which employees use to drop helpful hints to the management. The officer scribbed "Suggest you lock your door at night" and departed. This might save some marriage too. Rose said 62 per cent of his male clients get divorces because their husbands don't make enot money to spend on homes. WEST 7th CAFE 1 block S'East of Jayhawk Plunge Our meals will make you a regular customer! Short Orders OPEN SUNDAYS 55c Dinners Many Theoretical and Applied Studies Behind Development of"Cordura"Rayon Stronger, lighter tires made possible by teamwork of Du Pont chemists, engineers, and physicists On the surface, the viscose process for rayon seems fairly simple. Cellulose from cotton or wood is steeped in NaOH to give alkali cellulose, which is treated with $\mathrm{CS}_2$ to form cellulose xanthate. Adding NaOH gives molasses like "viscose," which is squirted through spinners into a coagulating bath of acid and salt to form from 500 to 1,000 filaments simultaneously: $$ $\mathrm{R}^{+}\cdot \mathrm{OH} + \mathrm{NaO H} \rightarrow \mathrm{R}\cdot \mathrm{ONa} + \mathrm{H}_{2} \mathrm{O}$ (cellulose) (alkali cellulose) $$ $$ S R-ONa + CS$_2$ → R-O-C-SNa (cellulose xanthate) $$ S II R-O-C-SNa + H2SO4 ⇒ R-OH + CS2 + NaHSO4 (cellulose) $ \mathbf{R}^{*}={\mathrm{C}}_{6}{\mathrm{H}}_{7}{\mathrm{O}}_{2}({\mathrm{{OH}}})_{2} $ Du Pont scientists were working to improve on the properties of rayon made by this process when, in 1928, a rubber company asked for a rayon yarn that would be stronger than cotton for fire cords. The problem was given to a team of organic, physical, and analytical chemists, chemical and mechanical engineers, and physicists. In developing the new improved rayon, a number of theoretical studies were carried out: for example, (1) rates of diffusion of the coagulating bath into the viscose filaments, (2) the mechanism of coagulation of viscose, (3) the relationship between fiber structure and properties by x-rays, and (4) a phase study of spinning baths. Theoretical and Applied Studies Concurrently, applied research was necessary. This proceeded along many lines, but the main problem was to perfect the spinning technique. It was known that a short delay in the bath between the spinneret and the stretching operation allowed greater tension on the filaments. Du Pont engineers, therefore, designed a series of rollers, each revolving faster than the previous one, to increase the tension gradually. In addition, a textile finish was developed that combined just the right amount of plasticizing action and lubricating power, allowing the filaments to twist evenly in forming the cord. A new adhesive was prepared to join the yarn with rubber. New twisting techniques for cord manufacture were found, since the usual methods caused loss in rayon strength. Engineering Problems Solved Chemical and mechanical engineers were faced with the design and operation of equipment for more than 15 different types of unit operations. Equipment had to operate every minute of the day, yet turn out perfectly uniform yarn. It was necessary to filter the viscose so carefully that it would pass through spinning jet holes less than 4/1000th of an inch without plugging. Some of the most exact temperature and humidity control applications in the chemical industry were required. Out of this cooperation among scientists—ranging from studies of cellulose as a high polymer to design of enormous plants—came a new product, "Cordura" high-tenacity rayon, as strong as mild steel, yet able to stand up under repeated flexing. Today, this yarn is almost 100% stronger than 20 years ago. Tires made with it are less bulky and cooler running, yet give greater mileage under the most punishing operating Determination of spinning tension by C. S. McCandlish, Chemical Engineer, Northwestern University '44, and A. I. Whitten, Ph.D., Physical Chemistry, Duke University '35. conditions. In "Cordura," men of Du Pont have made one of their most important contributions to the automotive industry. How are new men engaged? How are new men making Most college men make their first contact through Personnel Division representatives who visit many campuses periodically. Those interested may ask their college authorities for details about the views. Write for booklet, "The Du Pont Company and the College Graduate," 2518 Nemours Building, Wilmington 98, Del. Questions College Men ask about working with Du Pont REG. U.S. PAT.OFF BETTER THINGS FOR BETTER LIVING ...THROUGH CHEMISTRY More facts about D-Pont — Listen to "Carvatec Monday Nights, NBC Coast to Coast" Rayon spinning machine. The spinning solution is pumped through a spinneret immersed in a hardening bath. Filaments are guided over a rotating glass wheel and down into the whirling collecting bucket. Inset shows close-up of spinneret; each hole forms a filament.