In this activity students will learn to make and size paper. The activity can be used as an introductory activity to promote student interest. In the early part of the 20th century, the field of chemistry was very involved in industrial processes, like paper manufacturing. Percy Julian was offered a job in the Institute of Paper Chemistry in Appleton, Wisconsin, an offer that was rescinded when it was discovered that Julian was an African-American. Instead, Julian accepted the position of Director of the Soya Products Division at the Glidden Company. Among his soy-related discoveries at Glidden was a more effective product for sizing paper.